diff --git a/mindspore/lite/test/ut/tools/converter/parser/tflite/tflite_l2norm_parser_test.cc b/mindspore/lite/test/ut/tools/converter/parser/tflite/tflite_l2norm_parser_test.cc
index 0fa8b0f6da4..675d8f82a70 100644
--- a/mindspore/lite/test/ut/tools/converter/parser/tflite/tflite_l2norm_parser_test.cc
+++ b/mindspore/lite/test/ut/tools/converter/parser/tflite/tflite_l2norm_parser_test.cc
@@ -27,6 +27,7 @@ class TestTfliteParserL2Norm : public TestTfliteParser {
 TEST_F(TestTfliteParserL2Norm, OpType) {
   ASSERT_NE(meta_graph, nullptr);
   ASSERT_GT(meta_graph->nodes.size(), 0);
+  ASSERT_NE(meta_graph->nodes.front()->primitive.get(), nullptr);
   ASSERT_EQ(meta_graph->nodes.front()->primitive->value.type, schema::PrimitiveType_L2Norm) << "wrong Op Type";
 }
 
diff --git a/mindspore/lite/tools/converter/parser/tflite/tflite_activation_parser.cc b/mindspore/lite/tools/converter/parser/tflite/tflite_activation_parser.cc
index b5babf04ce9..0e495cfca45 100644
--- a/mindspore/lite/tools/converter/parser/tflite/tflite_activation_parser.cc
+++ b/mindspore/lite/tools/converter/parser/tflite/tflite_activation_parser.cc
@@ -38,7 +38,7 @@ STATUS TfliteActivationParser::Parse(const std::unique_ptr<tflite::OperatorT> &t
     MS_LOG(ERROR) << "op->primitive is null";
     return RET_NULL_PTR;
   }
-  std::unique_ptr<schema::ActivationT> attr(new schema::ActivationT());
+  std::unique_ptr<schema::ActivationT> attr = std::make_unique<schema::ActivationT>();
 
   std::vector<std::string> node_name_str;
   Split(op->name, &node_name_str, "-");
@@ -89,7 +89,7 @@ STATUS TflitePreluParser::Parse(const std::unique_ptr<tflite::OperatorT> &tflite
     MS_LOG(ERROR) << "op->primitive is null";
     return RET_NULL_PTR;
   }
-  std::unique_ptr<schema::PreluT> attr(new schema::PreluT());
+  std::unique_ptr<schema::PreluT> attr = std::make_unique<schema::PreluT>();
 
   if (GetTfliteData(tflite_op->inputs[1], tflite_tensors, tflite_model_buffer, attr->slope)) {
     MS_LOG(ERROR) << "get pRelu -> slope failed";
@@ -124,7 +124,7 @@ STATUS TfliteLeakyReluParser::Parse(const std::unique_ptr<tflite::OperatorT> &tf
     return RET_NULL_PTR;
   }
 
-  std::unique_ptr<schema::LeakyReLUT> attr(new schema::LeakyReLUT());
+  std::unique_ptr<schema::LeakyReLUT> attr = std::make_unique<schema::LeakyReLUT>();
 
   const auto &tflite_attr = tflite_op->builtin_options.AsLeakyReluOptions();
   if (tflite_attr == nullptr) {
diff --git a/mindspore/lite/tools/converter/parser/tflite/tflite_addn_parser.cc b/mindspore/lite/tools/converter/parser/tflite/tflite_addn_parser.cc
index b88666fca93..130e9eb53e2 100644
--- a/mindspore/lite/tools/converter/parser/tflite/tflite_addn_parser.cc
+++ b/mindspore/lite/tools/converter/parser/tflite/tflite_addn_parser.cc
@@ -42,7 +42,7 @@ STATUS TfliteAddNParser::Parse(const std::unique_ptr<tflite::OperatorT> &tflite_
     return RET_NULL_PTR;
   }
 
-  std::unique_ptr<schema::AddNT> attr(new schema::AddNT());
+  std::unique_ptr<schema::AddNT> attr = std::make_unique<schema::AddNT>();
 
   attr->N = tflite_tensors.size() - 1;
   op->primitive->value.type = schema::PrimitiveType_AddN;
diff --git a/mindspore/lite/tools/converter/parser/tflite/tflite_argmax_parser.cc b/mindspore/lite/tools/converter/parser/tflite/tflite_argmax_parser.cc
index 1ccf2ea4651..d1aedeea20d 100644
--- a/mindspore/lite/tools/converter/parser/tflite/tflite_argmax_parser.cc
+++ b/mindspore/lite/tools/converter/parser/tflite/tflite_argmax_parser.cc
@@ -40,7 +40,7 @@ STATUS TfliteArgmaxParser::Parse(const std::unique_ptr<tflite::OperatorT> &tflit
     return RET_NULL_PTR;
   }
 
-  std::unique_ptr<schema::ArgMaxT> attr(new schema::ArgMaxT());
+  std::unique_ptr<schema::ArgMaxT> attr = std::make_unique<schema::ArgMaxT>();
 
   attr->outMaxValue = false;
   attr->topK = 1;
diff --git a/mindspore/lite/tools/converter/parser/tflite/tflite_argmin_parser.cc b/mindspore/lite/tools/converter/parser/tflite/tflite_argmin_parser.cc
index 1ce77d5ebac..998db501d9f 100644
--- a/mindspore/lite/tools/converter/parser/tflite/tflite_argmin_parser.cc
+++ b/mindspore/lite/tools/converter/parser/tflite/tflite_argmin_parser.cc
@@ -40,7 +40,7 @@ STATUS TfliteArgminParser::Parse(const std::unique_ptr<tflite::OperatorT> &tflit
     return RET_NULL_PTR;
   }
 
-  std::unique_ptr<schema::ArgMinT> attr(new schema::ArgMinT());
+  std::unique_ptr<schema::ArgMinT> attr = std::make_unique<schema::ArgMinT>();
 
   attr->outMaxValue = false;
   attr->topK = 1;
diff --git a/mindspore/lite/tools/converter/parser/tflite/tflite_arithmetic_parser.cc b/mindspore/lite/tools/converter/parser/tflite/tflite_arithmetic_parser.cc
index 2ebaa61131d..914391c5561 100644
--- a/mindspore/lite/tools/converter/parser/tflite/tflite_arithmetic_parser.cc
+++ b/mindspore/lite/tools/converter/parser/tflite/tflite_arithmetic_parser.cc
@@ -44,7 +44,7 @@ STATUS TfliteDoubleInputOpParser::Parse(const std::unique_ptr<tflite::OperatorT>
   const char *node_name = node_name_str.data()->c_str();
   if (std::strcmp(node_name, "Add") == 0) {
     MS_LOG(DEBUG) << "parse TfliteAddParser";
-    std::unique_ptr<schema::AddT> attr(new schema::AddT());
+    std::unique_ptr<schema::AddT> attr = std::make_unique<schema::AddT>();
     const auto &tfliteAttr = tflite_op->builtin_options.AsAddOptions();
     if (nullptr == tfliteAttr) {
       MS_LOG(ERROR) << "get op: " << op->name.c_str() << " attr failed";
@@ -55,7 +55,7 @@ STATUS TfliteDoubleInputOpParser::Parse(const std::unique_ptr<tflite::OperatorT>
     op->primitive->value.value = attr.release();
   } else if (std::strcmp(node_name, "Sub") == 0) {
     MS_LOG(DEBUG) << "parse TfliteSubParser";
-    std::unique_ptr<schema::SubT> attr(new schema::SubT());
+    std::unique_ptr<schema::SubT> attr = std::make_unique<schema::SubT>();
     const auto &tfliteAttr = tflite_op->builtin_options.AsSubOptions();
     if (nullptr == tfliteAttr) {
       MS_LOG(ERROR) << "get op: " << op->name.c_str() << " attr failed";
@@ -66,7 +66,7 @@ STATUS TfliteDoubleInputOpParser::Parse(const std::unique_ptr<tflite::OperatorT>
     op->primitive->value.value = attr.release();
   } else if (std::strcmp(node_name, "Mul") == 0) {
     MS_LOG(DEBUG) << "parse TfliteMulParser";
-    std::unique_ptr<schema::MulT> attr(new schema::MulT());
+    std::unique_ptr<schema::MulT> attr = std::make_unique<schema::MulT>();
     const auto &tfliteAttr = tflite_op->builtin_options.AsMulOptions();
     if (nullptr == tfliteAttr) {
       MS_LOG(ERROR) << "get op: " << op->name.c_str() << " attr failed";
@@ -77,7 +77,7 @@ STATUS TfliteDoubleInputOpParser::Parse(const std::unique_ptr<tflite::OperatorT>
     op->primitive->value.value = attr.release();
   } else if (std::strcmp(node_name, "Div") == 0) {
     MS_LOG(DEBUG) << "parse TfliteDivParser";
-    std::unique_ptr<schema::DivT> attr(new schema::DivT());
+    std::unique_ptr<schema::DivT> attr = std::make_unique<schema::DivT>();
     const auto &tfliteAttr = tflite_op->builtin_options.AsDivOptions();
     if (nullptr == tfliteAttr) {
       MS_LOG(ERROR) << "get op: " << op->name.c_str() << " attr failed";
@@ -88,27 +88,27 @@ STATUS TfliteDoubleInputOpParser::Parse(const std::unique_ptr<tflite::OperatorT>
     op->primitive->value.value = attr.release();
   } else if (std::strcmp(node_name, "FloorDiv") == 0) {
     MS_LOG(DEBUG) << "parse TfliteFloorDivParser";
-    std::unique_ptr<schema::FloorDivT> attr(new schema::FloorDivT());
+    std::unique_ptr<schema::FloorDivT> attr = std::make_unique<schema::FloorDivT>();
     op->primitive->value.type = schema::PrimitiveType_FloorDiv;
     op->primitive->value.value = attr.release();
   } else if (std::strcmp(node_name, "FloorMod") == 0) {
     MS_LOG(DEBUG) << "parse TfliteFloorModParser";
-    std::unique_ptr<schema::FloorModT> attr(new schema::FloorModT());
+    std::unique_ptr<schema::FloorModT> attr = std::make_unique<schema::FloorModT>();
     op->primitive->value.type = schema::PrimitiveType_FloorMod;
     op->primitive->value.value = attr.release();
   } else if (std::strcmp(node_name, "RealDiv") == 0) {
     MS_LOG(DEBUG) << "parse TfliteRealDivParser";
-    std::unique_ptr<schema::RealDivT> attr(new schema::RealDivT());
+    std::unique_ptr<schema::RealDivT> attr = std::make_unique<schema::RealDivT>();
     op->primitive->value.type = schema::PrimitiveType_Div;
     op->primitive->value.value = attr.release();
   } else if (std::strcmp(node_name, "SquaredDifference") == 0) {
     MS_LOG(DEBUG) << "parse TfliteSquaredDifferenceParser";
-    std::unique_ptr<schema::SquaredDifferenceT> attr(new schema::SquaredDifferenceT());
+    std::unique_ptr<schema::SquaredDifferenceT> attr = std::make_unique<schema::SquaredDifferenceT>();
     op->primitive->value.type = schema::PrimitiveType_SquaredDifference;
     op->primitive->value.value = attr.release();
   } else if (std::strcmp(node_name, "Pow") == 0) {
     MS_LOG(DEBUG) << "parse TflitePowParser";
-    std::unique_ptr<schema::PowerT> attr(new schema::PowerT());
+    std::unique_ptr<schema::PowerT> attr = std::make_unique<schema::PowerT>();
     attr->power = 0.0f;
     attr->scale = 1.0f;
     attr->shift = 0.0f;
@@ -116,12 +116,12 @@ STATUS TfliteDoubleInputOpParser::Parse(const std::unique_ptr<tflite::OperatorT>
     op->primitive->value.value = attr.release();
   } else if (std::strcmp(node_name, "Maximum") == 0) {
     MS_LOG(DEBUG) << "parse TfliteMaximumParser";
-    std::unique_ptr<schema::MaximumT> attr(new schema::MaximumT());
+    std::unique_ptr<schema::MaximumT> attr = std::make_unique<schema::MaximumT>();
     op->primitive->value.type = schema::PrimitiveType_Maximum;
     op->primitive->value.value = attr.release();
   } else if (std::strcmp(node_name, "Minimum") == 0) {
     MS_LOG(DEBUG) << "parse TfliteMinimumParser";
-    std::unique_ptr<schema::MinimumT> attr(new schema::MinimumT());
+    std::unique_ptr<schema::MinimumT> attr = std::make_unique<schema::MinimumT>();
     op->primitive->value.type = schema::PrimitiveType_Minimum;
     op->primitive->value.value = attr.release();
   }
@@ -158,57 +158,57 @@ STATUS TfliteSingleInputOpParser::Parse(const std::unique_ptr<tflite::OperatorT>
   const char *node_name = node_name_str.data()->c_str();
   if (std::strcmp(node_name, "Abs") == 0) {
     MS_LOG(DEBUG) << "parse TfliteAbsParser";
-    std::unique_ptr<schema::AbsT> attr(new schema::AbsT());
+    std::unique_ptr<schema::AbsT> attr = std::make_unique<schema::AbsT>();
     op->primitive->value.type = schema::PrimitiveType_Abs;
     op->primitive->value.value = attr.release();
   } else if (std::strcmp(node_name, "Exp") == 0) {
     MS_LOG(DEBUG) << "parse TfliteExpParser";
-    std::unique_ptr<schema::ExpT> attr(new schema::ExpT());
+    std::unique_ptr<schema::ExpT> attr = std::make_unique<schema::ExpT>();
     op->primitive->value.type = schema::PrimitiveType_Exp;
     op->primitive->value.value = attr.release();
   } else if (std::strcmp(node_name, "Sqrt") == 0) {
     MS_LOG(DEBUG) << "parse TfliteSqrtParser";
-    std::unique_ptr<schema::SqrtT> attr(new schema::SqrtT());
+    std::unique_ptr<schema::SqrtT> attr = std::make_unique<schema::SqrtT>();
     op->primitive->value.type = schema::PrimitiveType_Sqrt;
     op->primitive->value.value = attr.release();
   } else if (std::strcmp(node_name, "Rsqrt") == 0) {
     MS_LOG(DEBUG) << "parse TfliteRsqrtParser";
-    std::unique_ptr<schema::RsqrtT> attr(new schema::RsqrtT());
+    std::unique_ptr<schema::RsqrtT> attr = std::make_unique<schema::RsqrtT>();
     op->primitive->value.type = schema::PrimitiveType_Rsqrt;
     op->primitive->value.value = attr.release();
   } else if (std::strcmp(node_name, "Square") == 0) {
     MS_LOG(DEBUG) << "parse TfliteSquareParser";
-    std::unique_ptr<schema::SquareT> attr(new schema::SquareT());
+    std::unique_ptr<schema::SquareT> attr = std::make_unique<schema::SquareT>();
     op->primitive->value.type = schema::PrimitiveType_Square;
     op->primitive->value.value = attr.release();
   } else if (std::strcmp(node_name, "Sin") == 0) {
     MS_LOG(DEBUG) << "parse TfliteSinParser";
-    std::unique_ptr<schema::SinT> attr(new schema::SinT());
+    std::unique_ptr<schema::SinT> attr = std::make_unique<schema::SinT>();
     op->primitive->value.type = schema::PrimitiveType_Sin;
     op->primitive->value.value = attr.release();
   } else if (std::strcmp(node_name, "Cos") == 0) {
     MS_LOG(DEBUG) << "parse TfliteCosParser";
-    std::unique_ptr<schema::CosT> attr(new schema::CosT());
+    std::unique_ptr<schema::CosT> attr = std::make_unique<schema::CosT>();
     op->primitive->value.type = schema::PrimitiveType_Cos;
     op->primitive->value.value = attr.release();
   } else if (std::strcmp(node_name, "Log") == 0) {
     MS_LOG(DEBUG) << "parse TfliteLogParser";
-    std::unique_ptr<schema::LogT> attr(new schema::LogT());
+    std::unique_ptr<schema::LogT> attr = std::make_unique<schema::LogT>();
     op->primitive->value.type = schema::PrimitiveType_Log;
     op->primitive->value.value = attr.release();
   } else if (std::strcmp(node_name, "Round") == 0) {
     MS_LOG(DEBUG) << "parse TfliteRoundParser";
-    std::unique_ptr<schema::RoundT> attr(new schema::RoundT());
+    std::unique_ptr<schema::RoundT> attr = std::make_unique<schema::RoundT>();
     op->primitive->value.type = schema::PrimitiveType_Round;
     op->primitive->value.value = attr.release();
   } else if (std::strcmp(node_name, "Ceil") == 0) {
     MS_LOG(DEBUG) << "parse TfliteCeilParser";
-    std::unique_ptr<schema::CeilT> attr(new schema::CeilT());
+    std::unique_ptr<schema::CeilT> attr = std::make_unique<schema::CeilT>();
     op->primitive->value.type = schema::PrimitiveType_Ceil;
     op->primitive->value.value = attr.release();
   } else if (std::strcmp(node_name, "flOOR") == 0) {
     MS_LOG(DEBUG) << "parse TfliteFloorParser";
-    std::unique_ptr<schema::FloorT> attr(new schema::FloorT());
+    std::unique_ptr<schema::FloorT> attr = std::make_unique<schema::FloorT>();
     op->primitive->value.type = schema::PrimitiveType_Floor;
     op->primitive->value.value = attr.release();
   }
@@ -242,32 +242,32 @@ STATUS TfliteCompareOpParser::Parse(const std::unique_ptr<tflite::OperatorT> &tf
   const char *node_name = node_name_str.data()->c_str();
   if (std::strcmp(node_name, "Equal") == 0) {
     MS_LOG(DEBUG) << "parse TfliteEqualParser";
-    std::unique_ptr<schema::EqualT> attr(new schema::EqualT());
+    std::unique_ptr<schema::EqualT> attr = std::make_unique<schema::EqualT>();
     op->primitive->value.type = schema::PrimitiveType_Equal;
     op->primitive->value.value = attr.release();
   } else if (std::strcmp(node_name, "NotEqual") == 0) {
     MS_LOG(DEBUG) << "parse TfliteNotEqualParser";
-    std::unique_ptr<schema::NotEqualT> attr(new schema::NotEqualT());
+    std::unique_ptr<schema::NotEqualT> attr = std::make_unique<schema::NotEqualT>();
     op->primitive->value.type = schema::PrimitiveType_NotEqual;
     op->primitive->value.value = attr.release();
   } else if (std::strcmp(node_name, "Greater") == 0) {
     MS_LOG(DEBUG) << "parse TfliteGreaterParser";
-    std::unique_ptr<schema::GreaterT> attr(new schema::GreaterT());
+    std::unique_ptr<schema::GreaterT> attr = std::make_unique<schema::GreaterT>();
     op->primitive->value.type = schema::PrimitiveType_Greater;
     op->primitive->value.value = attr.release();
   } else if (std::strcmp(node_name, "GreaterEqual") == 0) {
     MS_LOG(DEBUG) << "parse TfliteGreaterEqualParser";
-    std::unique_ptr<schema::GreaterEqualT> attr(new schema::GreaterEqualT());
+    std::unique_ptr<schema::GreaterEqualT> attr = std::make_unique<schema::GreaterEqualT>();
     op->primitive->value.type = schema::PrimitiveType_GreaterEqual;
     op->primitive->value.value = attr.release();
   } else if (std::strcmp(node_name, "Less") == 0) {
     MS_LOG(DEBUG) << "parse TfliteLessParser";
-    std::unique_ptr<schema::LessT> attr(new schema::LessT());
+    std::unique_ptr<schema::LessT> attr = std::make_unique<schema::LessT>();
     op->primitive->value.type = schema::PrimitiveType_Less;
     op->primitive->value.value = attr.release();
   } else if (std::strcmp(node_name, "LessEqual") == 0) {
     MS_LOG(DEBUG) << "parse TfliteLessEqualParser";
-    std::unique_ptr<schema::LessEqualT> attr(new schema::LessEqualT());
+    std::unique_ptr<schema::LessEqualT> attr = std::make_unique<schema::LessEqualT>();
     op->primitive->value.type = schema::PrimitiveType_LessEqual;
     op->primitive->value.value = attr.release();
   }
diff --git a/mindspore/lite/tools/converter/parser/tflite/tflite_batch_to_space_parser.cc b/mindspore/lite/tools/converter/parser/tflite/tflite_batch_to_space_parser.cc
index 3c490ac4e44..adc8f2f105f 100644
--- a/mindspore/lite/tools/converter/parser/tflite/tflite_batch_to_space_parser.cc
+++ b/mindspore/lite/tools/converter/parser/tflite/tflite_batch_to_space_parser.cc
@@ -49,7 +49,7 @@ STATUS TfliteBatchToSpaceParser::Parse(const std::unique_ptr<tflite::OperatorT>
     MS_LOG(DEBUG) << "parse TfliteBatchToSpaceNDParser";
   }
 
-  std::unique_ptr<schema::BatchToSpaceT> attr(new schema::BatchToSpaceT());
+  std::unique_ptr<schema::BatchToSpaceT> attr = std::make_unique<schema::BatchToSpaceT>();
 
   if (GetTfliteData(tflite_op->inputs[1], tflite_tensors, tflite_model_buffer, attr->blockShape)) {
     MS_LOG(ERROR) << "get batchToSpace -> blockShape failed";
diff --git a/mindspore/lite/tools/converter/parser/tflite/tflite_broadcast_to_parser.cc b/mindspore/lite/tools/converter/parser/tflite/tflite_broadcast_to_parser.cc
index 199aff567b2..0a4d36decb3 100644
--- a/mindspore/lite/tools/converter/parser/tflite/tflite_broadcast_to_parser.cc
+++ b/mindspore/lite/tools/converter/parser/tflite/tflite_broadcast_to_parser.cc
@@ -41,7 +41,7 @@ STATUS TfliteBroadcastToParser::Parse(const std::unique_ptr<tflite::OperatorT> &
     return RET_NULL_PTR;
   }
 
-  std::unique_ptr<schema::BroadcastToT> attr(new schema::BroadcastToT());
+  std::unique_ptr<schema::BroadcastToT> attr = std::make_unique<schema::BroadcastToT>();
 
   if (GetTfliteData(tflite_op->inputs[1], tflite_tensors, tflite_model_buffer, attr->dst_shape)) {
     MS_LOG(ERROR) << "get broadCastTo -> dst_shape failed";
diff --git a/mindspore/lite/tools/converter/parser/tflite/tflite_cast_parser.cc b/mindspore/lite/tools/converter/parser/tflite/tflite_cast_parser.cc
index ee5120ddec8..7ff446973e2 100644
--- a/mindspore/lite/tools/converter/parser/tflite/tflite_cast_parser.cc
+++ b/mindspore/lite/tools/converter/parser/tflite/tflite_cast_parser.cc
@@ -40,7 +40,7 @@ STATUS TfliteCastParser::Parse(const std::unique_ptr<tflite::OperatorT> &tflite_
     return RET_NULL_PTR;
   }
 
-  std::unique_ptr<schema::CastT> attr(new schema::CastT());
+  std::unique_ptr<schema::CastT> attr = std::make_unique<schema::CastT>();
 
   const auto &in_tensor = tflite_tensors[tflite_op->inputs[0]];
   if (in_tensor == nullptr) {
diff --git a/mindspore/lite/tools/converter/parser/tflite/tflite_concat_parser.cc b/mindspore/lite/tools/converter/parser/tflite/tflite_concat_parser.cc
index 86c4d98b89a..cc17a473d28 100644
--- a/mindspore/lite/tools/converter/parser/tflite/tflite_concat_parser.cc
+++ b/mindspore/lite/tools/converter/parser/tflite/tflite_concat_parser.cc
@@ -41,7 +41,7 @@ STATUS TfliteConcatParser::Parse(const std::unique_ptr<tflite::OperatorT> &tflit
     return RET_NULL_PTR;
   }
 
-  std::unique_ptr<schema::ConcatT> attr(new schema::ConcatT());
+  std::unique_ptr<schema::ConcatT> attr = std::make_unique<schema::ConcatT>();
 
   const auto &tfliteAttr = tflite_op->builtin_options.AsConcatenationOptions();
   if (tfliteAttr == nullptr) {
diff --git a/mindspore/lite/tools/converter/parser/tflite/tflite_conv_parser.cc b/mindspore/lite/tools/converter/parser/tflite/tflite_conv_parser.cc
index 8de26527b25..fec5f76d5a2 100644
--- a/mindspore/lite/tools/converter/parser/tflite/tflite_conv_parser.cc
+++ b/mindspore/lite/tools/converter/parser/tflite/tflite_conv_parser.cc
@@ -40,7 +40,7 @@ STATUS TfliteConvParser::Parse(const std::unique_ptr<tflite::OperatorT> &tflite_
     return RET_NULL_PTR;
   }
 
-  std::unique_ptr<schema::Conv2DT> attr(new schema::Conv2DT());
+  std::unique_ptr<schema::Conv2DT> attr = std::make_unique<schema::Conv2DT>();
   const auto &tflite_attr = tflite_op->builtin_options.AsConv2DOptions();
   if (tflite_attr == nullptr) {
     MS_LOG(ERROR) << "get op: " << op->name.c_str() << " attr failed";
diff --git a/mindspore/lite/tools/converter/parser/tflite/tflite_deconv_parser.cc b/mindspore/lite/tools/converter/parser/tflite/tflite_deconv_parser.cc
index 565bceb8a45..cf9d55d830a 100644
--- a/mindspore/lite/tools/converter/parser/tflite/tflite_deconv_parser.cc
+++ b/mindspore/lite/tools/converter/parser/tflite/tflite_deconv_parser.cc
@@ -40,7 +40,7 @@ STATUS TfliteDeConvParser::Parse(const std::unique_ptr<tflite::OperatorT> &tflit
     return RET_NULL_PTR;
   }
 
-  std::unique_ptr<schema::DeConv2DT> attr(new schema::DeConv2DT());
+  std::unique_ptr<schema::DeConv2DT> attr = std::make_unique<schema::DeConv2DT>();
   const auto &tflite_attr = tflite_op->builtin_options.AsTransposeConvOptions();
   if (tflite_attr == nullptr) {
     MS_LOG(ERROR) << "get op: " << op->name.c_str() << " attr failed";
diff --git a/mindspore/lite/tools/converter/parser/tflite/tflite_depth_to_space_parser.cc b/mindspore/lite/tools/converter/parser/tflite/tflite_depth_to_space_parser.cc
index b8fceaed9a7..d37f17ed3b0 100644
--- a/mindspore/lite/tools/converter/parser/tflite/tflite_depth_to_space_parser.cc
+++ b/mindspore/lite/tools/converter/parser/tflite/tflite_depth_to_space_parser.cc
@@ -41,7 +41,7 @@ STATUS TfliteDepthToSpaceParser::Parse(const std::unique_ptr<tflite::OperatorT>
     return RET_NULL_PTR;
   }
 
-  std::unique_ptr<schema::DepthToSpaceT> attr(new schema::DepthToSpaceT());
+  std::unique_ptr<schema::DepthToSpaceT> attr = std::make_unique<schema::DepthToSpaceT>();
 
   const auto &tflite_attr = tflite_op->builtin_options.AsDepthToSpaceOptions();
   if (tflite_attr == nullptr) {
diff --git a/mindspore/lite/tools/converter/parser/tflite/tflite_depthwise_conv_parser.cc b/mindspore/lite/tools/converter/parser/tflite/tflite_depthwise_conv_parser.cc
index 5ebe2583730..f6ff3eab711 100644
--- a/mindspore/lite/tools/converter/parser/tflite/tflite_depthwise_conv_parser.cc
+++ b/mindspore/lite/tools/converter/parser/tflite/tflite_depthwise_conv_parser.cc
@@ -41,7 +41,7 @@ STATUS TfliteDepthwiseConv2DParser::Parse(const std::unique_ptr<tflite::Operator
     return RET_NULL_PTR;
   }
 
-  std::unique_ptr<schema::DepthwiseConv2DT> attr(new schema::DepthwiseConv2DT());
+  std::unique_ptr<schema::DepthwiseConv2DT> attr = std::make_unique<schema::DepthwiseConv2DT>();
   const auto &tflite_attr = tflite_op->builtin_options.AsDepthwiseConv2DOptions();
   if (tflite_attr == nullptr) {
     MS_LOG(ERROR) << "get op: " << op->name.c_str() << " attr failed";
diff --git a/mindspore/lite/tools/converter/parser/tflite/tflite_dequantize_parser.cc b/mindspore/lite/tools/converter/parser/tflite/tflite_dequantize_parser.cc
index 5854166fd32..3e7f4129cb8 100644
--- a/mindspore/lite/tools/converter/parser/tflite/tflite_dequantize_parser.cc
+++ b/mindspore/lite/tools/converter/parser/tflite/tflite_dequantize_parser.cc
@@ -40,7 +40,7 @@ STATUS TfliteDequantizeParser::Parse(const std::unique_ptr<tflite::OperatorT> &t
     return RET_NULL_PTR;
   }
 
-  std::unique_ptr<schema::CastT> attr(new schema::CastT);
+  std::unique_ptr<schema::CastT> attr = std::make_unique<schema::CastT>();
 
   // get the dequantize input tensor
   const auto &in_tensor = tflite_tensors[tflite_op->inputs[0]];
diff --git a/mindspore/lite/tools/converter/parser/tflite/tflite_expand_dims_parser.cc b/mindspore/lite/tools/converter/parser/tflite/tflite_expand_dims_parser.cc
index 0d3c91528f9..191c3bff984 100644
--- a/mindspore/lite/tools/converter/parser/tflite/tflite_expand_dims_parser.cc
+++ b/mindspore/lite/tools/converter/parser/tflite/tflite_expand_dims_parser.cc
@@ -28,6 +28,8 @@ STATUS TfliteExpandDimsParser::Parse(const std::unique_ptr<tflite::OperatorT> &t
                                      std::vector<int32_t> *tensors_id,
                                      std::vector<schema::Format> *tensors_format,
                                      std::map<int, int>  *tensors_id_map) {
+  MS_LOG(DEBUG) << "parse TfliteExpandDimsParser";
+
   if (op == nullptr) {
     MS_LOG(ERROR) << "op is null";
     return RET_NULL_PTR;
@@ -38,8 +40,7 @@ STATUS TfliteExpandDimsParser::Parse(const std::unique_ptr<tflite::OperatorT> &t
     return RET_NULL_PTR;
   }
 
-  MS_LOG(DEBUG) << "parse TfliteExpandDimsParser";
-  std::unique_ptr<schema::ExpandDimsT> attr(new schema::ExpandDimsT());
+  std::unique_ptr<schema::ExpandDimsT> attr = std::make_unique<schema::ExpandDimsT>();
 
   const auto &tflite_attr = tflite_op->builtin_options.AsExpandDimsOptions();
   if (tflite_attr == nullptr) {
diff --git a/mindspore/lite/tools/converter/parser/tflite/tflite_fill_parser.cc b/mindspore/lite/tools/converter/parser/tflite/tflite_fill_parser.cc
index 70405dbf1e1..a563bcc7c73 100644
--- a/mindspore/lite/tools/converter/parser/tflite/tflite_fill_parser.cc
+++ b/mindspore/lite/tools/converter/parser/tflite/tflite_fill_parser.cc
@@ -40,7 +40,7 @@ STATUS TfliteFillParser::Parse(const std::unique_ptr<tflite::OperatorT> &tflite_
     return RET_NULL_PTR;
   }
 
-  std::unique_ptr<schema::FillT> attr(new schema::FillT());
+  std::unique_ptr<schema::FillT> attr = std::make_unique<schema::FillT>();
 
   if (tflite_op->inputs.size() > 1) {
     if (GetTfliteData(tflite_op->inputs[1], tflite_tensors, tflite_model_buffer, attr->dims)) {
diff --git a/mindspore/lite/tools/converter/parser/tflite/tflite_fullyconnected_parser.cc b/mindspore/lite/tools/converter/parser/tflite/tflite_fullyconnected_parser.cc
index f84bff6bdf7..447fb7ae74f 100644
--- a/mindspore/lite/tools/converter/parser/tflite/tflite_fullyconnected_parser.cc
+++ b/mindspore/lite/tools/converter/parser/tflite/tflite_fullyconnected_parser.cc
@@ -47,7 +47,7 @@ STATUS TfliteFullyConnectedParser::Parse(const std::unique_ptr<tflite::OperatorT
   } else if (std::strcmp(node_name, "FakeQuant") == 0) {
     MS_LOG(DEBUG) << "parse TfliteFakeQuantParser";
   }
-  std::unique_ptr<schema::FullConnectionT> attr(new schema::FullConnectionT());
+  std::unique_ptr<schema::FullConnectionT> attr = std::make_unique<schema::FullConnectionT>();
 
   const auto &tflite_attr = tflite_op->builtin_options.AsFullyConnectedOptions();
   if (tflite_attr == nullptr) {
@@ -55,7 +55,9 @@ STATUS TfliteFullyConnectedParser::Parse(const std::unique_ptr<tflite::OperatorT
     return RET_NULL_PTR;
   }
 
-  attr->hasBias = true;
+  bool hasBias = tflite_op->inputs.size() > 2 && tflite_op->inputs[2] != -1;
+
+  attr->hasBias = hasBias;
   attr->axis = 1;
   attr->useAxis = false;
   attr->activationType = GetActivationFunctionType(tflite_attr->fused_activation_function);
@@ -67,8 +69,10 @@ STATUS TfliteFullyConnectedParser::Parse(const std::unique_ptr<tflite::OperatorT
              tflite_op->inputs[0], tensors_id->size(), tflite_tensors.size(), schema::Format_NHWC);
   AddOpInput(op, tensors_id, tensors_format, tensors_id_map,
              tflite_op->inputs[1], tensors_id->size(), tflite_tensors.size(), schema::Format_KHWC);
-  AddOpInput(op, tensors_id, tensors_format, tensors_id_map,
-             tflite_op->inputs[2], tensors_id->size(), tflite_tensors.size(), schema::Format_NHWC);
+  if (hasBias) {
+    AddOpInput(op, tensors_id, tensors_format, tensors_id_map,
+               tflite_op->inputs[2], tensors_id->size(), tflite_tensors.size(), schema::Format_NHWC);
+  }
   AddOpOutput(op, tensors_id, tensors_format, tensors_id_map,
               tflite_op->outputs[0], tensors_id->size(), tflite_tensors.size(), schema::Format_NHWC);
   return RET_OK;
diff --git a/mindspore/lite/tools/converter/parser/tflite/tflite_gather_nd_parser.cc b/mindspore/lite/tools/converter/parser/tflite/tflite_gather_nd_parser.cc
index e8218bb4318..d9f9b681521 100644
--- a/mindspore/lite/tools/converter/parser/tflite/tflite_gather_nd_parser.cc
+++ b/mindspore/lite/tools/converter/parser/tflite/tflite_gather_nd_parser.cc
@@ -40,7 +40,7 @@ STATUS TfliteGatherNdParser::Parse(const std::unique_ptr<tflite::OperatorT> &tfl
     return RET_NULL_PTR;
   }
 
-  std::unique_ptr<schema::GatherNdT> attr(new schema::GatherNdT());
+  std::unique_ptr<schema::GatherNdT> attr = std::make_unique<schema::GatherNdT>();
   attr->batchDims = 0;
 
   op->primitive->value.type = schema::PrimitiveType_GatherNd;
diff --git a/mindspore/lite/tools/converter/parser/tflite/tflite_gather_parser.cc b/mindspore/lite/tools/converter/parser/tflite/tflite_gather_parser.cc
index cf388e94d89..662c5c5c847 100644
--- a/mindspore/lite/tools/converter/parser/tflite/tflite_gather_parser.cc
+++ b/mindspore/lite/tools/converter/parser/tflite/tflite_gather_parser.cc
@@ -41,7 +41,7 @@ STATUS TfliteGatherParser::Parse(const std::unique_ptr<tflite::OperatorT> &tflit
     return RET_NULL_PTR;
   }
 
-  std::unique_ptr<schema::GatherT> attr(new schema::GatherT());
+  std::unique_ptr<schema::GatherT> attr = std::make_unique<schema::GatherT>();
 
   const auto &tflite_attr = tflite_op->builtin_options.AsGatherOptions();
   if (tflite_attr == nullptr) {
diff --git a/mindspore/lite/tools/converter/parser/tflite/tflite_l2norm_parser.cc b/mindspore/lite/tools/converter/parser/tflite/tflite_l2norm_parser.cc
index 8ef185d9074..b66f59a7cd4 100644
--- a/mindspore/lite/tools/converter/parser/tflite/tflite_l2norm_parser.cc
+++ b/mindspore/lite/tools/converter/parser/tflite/tflite_l2norm_parser.cc
@@ -42,8 +42,16 @@ STATUS TfliteL2NormParser::Parse(const std::unique_ptr<tflite::OperatorT> &tflit
     return RET_NULL_PTR;
   }
 
-  std::unique_ptr<schema::L2NormT> attr(new schema::L2NormT());
+  std::unique_ptr<schema::L2NormT> attr = std::make_unique<schema::L2NormT>();
+  if (tflite_op->inputs.empty()) {
+    MS_LOG(ERROR) << "the input is null";
+    return RET_NULL_PTR;
+  }
   auto data_index = tflite_op->inputs[0];
+  if (tflite_op->inputs.size() <= data_index) {
+    MS_LOG(ERROR) << "the size of input should be greater than " << data_index;
+    return RET_ERROR;
+  }
   const auto &data_tensor = tflite_tensors[data_index];
   if (data_tensor == nullptr) {
     MS_LOG(ERROR) << "the input tensor is null";
diff --git a/mindspore/lite/tools/converter/parser/tflite/tflite_logical_parser.cc b/mindspore/lite/tools/converter/parser/tflite/tflite_logical_parser.cc
index c6677327664..7c755c54e4c 100644
--- a/mindspore/lite/tools/converter/parser/tflite/tflite_logical_parser.cc
+++ b/mindspore/lite/tools/converter/parser/tflite/tflite_logical_parser.cc
@@ -44,17 +44,17 @@ STATUS TfliteLogicalParser::Parse(const std::unique_ptr<tflite::OperatorT> &tfli
   const char *node_name = node_name_str.data()->c_str();
   if (std::strcmp(node_name, "LogicalAnd") == 0) {
     MS_LOG(DEBUG) << "parse TfliteLogicalAndParser";
-    std::unique_ptr<schema::LogicalAndT> attr(new schema::LogicalAndT());
+    std::unique_ptr<schema::LogicalAndT> attr = std::make_unique<schema::LogicalAndT>();
     op->primitive->value.type = schema::PrimitiveType_LogicalAnd;
     op->primitive->value.value = attr.release();
   } else if (std::strcmp(node_name, "LogicalNot") == 0) {
     MS_LOG(DEBUG) << "parse TfliteLogicalNotParser";
-    std::unique_ptr<schema::LogicalNotT> attr(new schema::LogicalNotT());
+    std::unique_ptr<schema::LogicalNotT> attr = std::make_unique<schema::LogicalNotT>();
     op->primitive->value.type = schema::PrimitiveType_LogicalNot;
     op->primitive->value.value = attr.release();
   } else if (std::strcmp(node_name, "LogicalOr") == 0) {
     MS_LOG(DEBUG) << "parse TfliteLogicalOrParser";
-    std::unique_ptr<schema::LogicalOrT> attr(new schema::LogicalOrT());
+    std::unique_ptr<schema::LogicalOrT> attr = std::make_unique<schema::LogicalOrT>();
     op->primitive->value.type = schema::PrimitiveType_LogicalOr;
     op->primitive->value.value = attr.release();
   }
diff --git a/mindspore/lite/tools/converter/parser/tflite/tflite_lrn_parser.cc b/mindspore/lite/tools/converter/parser/tflite/tflite_lrn_parser.cc
index 8986729d72e..d47f6f7fbed 100644
--- a/mindspore/lite/tools/converter/parser/tflite/tflite_lrn_parser.cc
+++ b/mindspore/lite/tools/converter/parser/tflite/tflite_lrn_parser.cc
@@ -41,7 +41,7 @@ STATUS TfliteLRNParser::Parse(const std::unique_ptr<tflite::OperatorT> &tflite_o
     return RET_NULL_PTR;
   }
 
-  std::unique_ptr<schema::LocalResponseNormalizationT> attr(new schema::LocalResponseNormalizationT());
+  std::unique_ptr<schema::LocalResponseNormalizationT> attr = std::make_unique<schema::LocalResponseNormalizationT>();
 
   const auto &tflite_attr = tflite_op->builtin_options.AsLocalResponseNormalizationOptions();
   if (tflite_attr == nullptr) {
diff --git a/mindspore/lite/tools/converter/parser/tflite/tflite_model_parser.cc b/mindspore/lite/tools/converter/parser/tflite/tflite_model_parser.cc
index 2e6d754184e..452f44d84d7 100644
--- a/mindspore/lite/tools/converter/parser/tflite/tflite_model_parser.cc
+++ b/mindspore/lite/tools/converter/parser/tflite/tflite_model_parser.cc
@@ -43,7 +43,8 @@ std::unique_ptr<tflite::ModelT> TfliteModelParser::ReadTfliteModel(const char *m
 }
 
 STATUS TfliteModelParser::CopyConstTensorData(const std::vector<std::unique_ptr<tflite::BufferT>> &tflite_model_buffer,
-                                              const tflite::TensorT *tflite_tensor, schema::TensorT *tensor) {
+                                              const tflite::TensorT *tflite_tensor,
+                                              schema::TensorT *tensor) {
   auto count = 1;
   std::for_each(tflite_tensor->shape.begin(), tflite_tensor->shape.end(), [&](int32_t sha) { count *= sha; });
   auto data_size = count * GetDataTypeSize(TypeId(tensor->dataType));
@@ -91,7 +92,8 @@ void TfliteModelParser::SetTensorQuantParam(const std::unique_ptr<tflite::Tensor
 
 STATUS TfliteModelParser::ConvertOp(const std::unique_ptr<tflite::ModelT> &tflite_model,
                                     const std::unique_ptr<tflite::SubGraphT> &tflite_subgraph,
-                                    const QuantType &quant_type, schema::MetaGraphT *sub_graph) {
+                                    const QuantType &quant_type,
+                                    schema::MetaGraphT *sub_graph) {
   int idx = 0;
   for (const auto &tflite_op : tflite_subgraph->operators) {
     auto tflite_op_type = (tflite_model->operator_codes[tflite_op->opcode_index])->builtin_code;
@@ -293,7 +295,8 @@ STATUS TfliteModelParser::ConvertGroupDepthwiseOp(schema::MetaGraphT* sub_graph)
   return RET_OK;
 }
 
-MetaGraphT *TfliteModelParser::Parse(const std::string &model_file, const std::string &weight_file,
+MetaGraphT *TfliteModelParser::Parse(const std::string &model_file,
+                                     const std::string &weight_file,
                                      const QuantType &quant_type) {
   std::unique_ptr<schema::MetaGraphT> sub_graph(new schema::MetaGraphT);
   sub_graph->name = "MS_model converted by TF-Lite";
diff --git a/mindspore/lite/tools/converter/parser/tflite/tflite_model_parser.h b/mindspore/lite/tools/converter/parser/tflite/tflite_model_parser.h
index 833ef1cbec9..2d95500213b 100644
--- a/mindspore/lite/tools/converter/parser/tflite/tflite_model_parser.h
+++ b/mindspore/lite/tools/converter/parser/tflite/tflite_model_parser.h
@@ -58,14 +58,14 @@ class TfliteModelParser : public ModelParser {
   STATUS ConvertOp(const std::unique_ptr<tflite::ModelT> &tflite_model,
                    const std::unique_ptr<tflite::SubGraphT> &tflite_subgraph,
                    const QuantType &quant_type,
-                   schema::MetaGraphT* sub_graph);
+                   schema::MetaGraphT *sub_graph);
 
   STATUS ConvertTensor(const std::unique_ptr<tflite::SubGraphT> &tflite_subgraph,
                        const std::vector<std::unique_ptr<tflite::BufferT>> &tflite_model_buffer,
-                       schema::MetaGraphT* sub_graph);
+                       schema::MetaGraphT *sub_graph);
 
   STATUS GetGraphInfo(const std::unique_ptr<tflite::SubGraphT> &tflite_subgraph,
-                      schema::MetaGraphT* sub_graph);
+                      schema::MetaGraphT *sub_graph);
 
   STATUS ConvertGroupDepthwiseOp(schema::MetaGraphT* sub_graph);
 
diff --git a/mindspore/lite/tools/converter/parser/tflite/tflite_one_hot_parser.cc b/mindspore/lite/tools/converter/parser/tflite/tflite_one_hot_parser.cc
index 4f8b7261611..71cc518c6f6 100644
--- a/mindspore/lite/tools/converter/parser/tflite/tflite_one_hot_parser.cc
+++ b/mindspore/lite/tools/converter/parser/tflite/tflite_one_hot_parser.cc
@@ -40,7 +40,7 @@ STATUS TfliteOneHotParser::Parse(const std::unique_ptr<tflite::OperatorT> &tflit
     return RET_NULL_PTR;
   }
 
-  std::unique_ptr<schema::OneHotT> attr(new schema::OneHotT());
+  std::unique_ptr<schema::OneHotT> attr = std::make_unique<schema::OneHotT>();
 
   const auto &tflite_attr = tflite_op->builtin_options.AsOneHotOptions();
   if (tflite_attr == nullptr) {
diff --git a/mindspore/lite/tools/converter/parser/tflite/tflite_pad_parser.cc b/mindspore/lite/tools/converter/parser/tflite/tflite_pad_parser.cc
index db828d1fcf1..7a09b81a700 100644
--- a/mindspore/lite/tools/converter/parser/tflite/tflite_pad_parser.cc
+++ b/mindspore/lite/tools/converter/parser/tflite/tflite_pad_parser.cc
@@ -40,7 +40,7 @@ STATUS TflitePadParser::Parse(const std::unique_ptr<tflite::OperatorT> &tflite_o
     return RET_NULL_PTR;
   }
 
-  std::unique_ptr<schema::PadT> attr(new schema::PadT());
+  std::unique_ptr<schema::PadT> attr = std::make_unique<schema::PadT>();
 
   const auto &tflite_attr = tflite_op->builtin_options.AsPadOptions();
   if (tflite_attr == nullptr) {
diff --git a/mindspore/lite/tools/converter/parser/tflite/tflite_pooling_parser.cc b/mindspore/lite/tools/converter/parser/tflite/tflite_pooling_parser.cc
index 1d7db44adb5..8a33f4a720d 100644
--- a/mindspore/lite/tools/converter/parser/tflite/tflite_pooling_parser.cc
+++ b/mindspore/lite/tools/converter/parser/tflite/tflite_pooling_parser.cc
@@ -39,7 +39,7 @@ STATUS TflitePoolingParser::Parse(const std::unique_ptr<tflite::OperatorT> &tfli
     return RET_NULL_PTR;
   }
 
-  std::unique_ptr<schema::PoolingT> attr(new schema::PoolingT());
+  std::unique_ptr<schema::PoolingT> attr = std::make_unique<schema::PoolingT>();
 
   std::vector<std::string> node_name_str;
   Split(op->name, &node_name_str, "-");
diff --git a/mindspore/lite/tools/converter/parser/tflite/tflite_range_parser.cc b/mindspore/lite/tools/converter/parser/tflite/tflite_range_parser.cc
index 519b5c243ba..9a33a174dee 100644
--- a/mindspore/lite/tools/converter/parser/tflite/tflite_range_parser.cc
+++ b/mindspore/lite/tools/converter/parser/tflite/tflite_range_parser.cc
@@ -40,7 +40,7 @@ STATUS TfliteRangeParser::Parse(const std::unique_ptr<tflite::OperatorT> &tflite
     return RET_NULL_PTR;
   }
 
-  std::unique_ptr<schema::RangeT> attr(new schema::RangeT());
+  std::unique_ptr<schema::RangeT> attr = std::make_unique<schema::RangeT>();
 
   attr->dType = 0;
 //  attr->start
diff --git a/mindspore/lite/tools/converter/parser/tflite/tflite_rank_parser.cc b/mindspore/lite/tools/converter/parser/tflite/tflite_rank_parser.cc
index d4fcac5371c..4a135a5bb1e 100644
--- a/mindspore/lite/tools/converter/parser/tflite/tflite_rank_parser.cc
+++ b/mindspore/lite/tools/converter/parser/tflite/tflite_rank_parser.cc
@@ -40,7 +40,7 @@ STATUS TfliteRankParser::Parse(const std::unique_ptr<tflite::OperatorT> &tflite_
     return RET_NULL_PTR;
   }
 
-  std::unique_ptr<schema::RankT> attr(new schema::RankT());
+  std::unique_ptr<schema::RankT> attr = std::make_unique<schema::RankT>();
 
   op->primitive->value.type = schema::PrimitiveType_Rank;
   op->primitive->value.value = attr.release();
diff --git a/mindspore/lite/tools/converter/parser/tflite/tflite_reduce_parser.cc b/mindspore/lite/tools/converter/parser/tflite/tflite_reduce_parser.cc
index 690ec75fd34..b9dc8e9da7f 100644
--- a/mindspore/lite/tools/converter/parser/tflite/tflite_reduce_parser.cc
+++ b/mindspore/lite/tools/converter/parser/tflite/tflite_reduce_parser.cc
@@ -40,7 +40,7 @@ STATUS TfliteReduceParser::Parse(const std::unique_ptr<tflite::OperatorT> &tflit
     return RET_NULL_PTR;
   }
 
-  std::unique_ptr<schema::ReduceT> attr(new schema::ReduceT());
+  std::unique_ptr<schema::ReduceT> attr = std::make_unique<schema::ReduceT>();
   // auto tflite_tensors = tflite_subgraph->tensors;
 
   const auto &tflite_attr = tflite_op->builtin_options.AsReducerOptions();
diff --git a/mindspore/lite/tools/converter/parser/tflite/tflite_reshape_parser.cc b/mindspore/lite/tools/converter/parser/tflite/tflite_reshape_parser.cc
index 3aa06063dc6..626383532d0 100644
--- a/mindspore/lite/tools/converter/parser/tflite/tflite_reshape_parser.cc
+++ b/mindspore/lite/tools/converter/parser/tflite/tflite_reshape_parser.cc
@@ -40,7 +40,7 @@ STATUS TfliteReshapeParser::Parse(const std::unique_ptr<tflite::OperatorT> &tfli
     return RET_NULL_PTR;
   }
 
-  std::unique_ptr<schema::ReshapeT> attr(new schema::ReshapeT());
+  std::unique_ptr<schema::ReshapeT> attr = std::make_unique<schema::ReshapeT>();
 
   const auto &tfliteAttr = tflite_op->builtin_options.AsReshapeOptions();
   if (tfliteAttr == nullptr) {
diff --git a/mindspore/lite/tools/converter/parser/tflite/tflite_resize_parser.cc b/mindspore/lite/tools/converter/parser/tflite/tflite_resize_parser.cc
index 3c5516b4974..0fc84646591 100644
--- a/mindspore/lite/tools/converter/parser/tflite/tflite_resize_parser.cc
+++ b/mindspore/lite/tools/converter/parser/tflite/tflite_resize_parser.cc
@@ -39,7 +39,7 @@ STATUS TfliteResizeParser::Parse(const std::unique_ptr<tflite::OperatorT> &tflit
     return RET_NULL_PTR;
   }
 
-  std::unique_ptr<schema::ResizeT> attr(new schema::ResizeT());
+  std::unique_ptr<schema::ResizeT> attr = std::make_unique<schema::ResizeT>();
 
   std::vector<std::string> node_name_str;
   Split(op->name.data(), &node_name_str, "-");
diff --git a/mindspore/lite/tools/converter/parser/tflite/tflite_reverse_parser.cc b/mindspore/lite/tools/converter/parser/tflite/tflite_reverse_parser.cc
index 7e449a3588a..cfcabbd5a33 100644
--- a/mindspore/lite/tools/converter/parser/tflite/tflite_reverse_parser.cc
+++ b/mindspore/lite/tools/converter/parser/tflite/tflite_reverse_parser.cc
@@ -40,7 +40,7 @@ STATUS TfliteReverseParser::Parse(const std::unique_ptr<tflite::OperatorT> &tfli
     return RET_NULL_PTR;
   }
 
-  std::unique_ptr<schema::ReverseT> attr(new schema::ReverseT());
+  std::unique_ptr<schema::ReverseT> attr = std::make_unique<schema::ReverseT>();
 
   if (GetTfliteData(tflite_op->inputs[1], tflite_tensors, tflite_model_buffer, attr->axis)) {
     MS_LOG(ERROR) << "get reverse -> axis failed";
diff --git a/mindspore/lite/tools/converter/parser/tflite/tflite_reverse_sequence_parser.cc b/mindspore/lite/tools/converter/parser/tflite/tflite_reverse_sequence_parser.cc
index 3d996a4feff..da7b4f8ae85 100644
--- a/mindspore/lite/tools/converter/parser/tflite/tflite_reverse_sequence_parser.cc
+++ b/mindspore/lite/tools/converter/parser/tflite/tflite_reverse_sequence_parser.cc
@@ -42,7 +42,7 @@ STATUS TfliteReverseSequenceParser::Parse(const std::unique_ptr<tflite::Operator
     return RET_NULL_PTR;
   }
 
-  std::unique_ptr<schema::ReverseSequenceT> attr(new schema::ReverseSequenceT());
+  std::unique_ptr<schema::ReverseSequenceT> attr = std::make_unique<schema::ReverseSequenceT>();
 
   const auto &tflite_attr = tflite_op->builtin_options.AsReverseSequenceOptions();
   if (tflite_attr == nullptr) {
diff --git a/mindspore/lite/tools/converter/parser/tflite/tflite_scatter_nd_parser.cc b/mindspore/lite/tools/converter/parser/tflite/tflite_scatter_nd_parser.cc
index 39568e47105..535ef54e8b1 100644
--- a/mindspore/lite/tools/converter/parser/tflite/tflite_scatter_nd_parser.cc
+++ b/mindspore/lite/tools/converter/parser/tflite/tflite_scatter_nd_parser.cc
@@ -41,7 +41,7 @@ STATUS TfliteScatterNdParser::Parse(const std::unique_ptr<tflite::OperatorT> &tf
     return RET_NULL_PTR;
   }
 
-  std::unique_ptr<schema::ScatterNDT> attr(new schema::ScatterNDT());
+  std::unique_ptr<schema::ScatterNDT> attr = std::make_unique<schema::ScatterNDT>();
 
   const auto &tflite_attr = tflite_op->builtin_options.AsScatterNdOptions();
   if (tflite_attr == nullptr) {
diff --git a/mindspore/lite/tools/converter/parser/tflite/tflite_shape_parser.cc b/mindspore/lite/tools/converter/parser/tflite/tflite_shape_parser.cc
index eae6cdb3527..582270eda67 100644
--- a/mindspore/lite/tools/converter/parser/tflite/tflite_shape_parser.cc
+++ b/mindspore/lite/tools/converter/parser/tflite/tflite_shape_parser.cc
@@ -40,7 +40,7 @@ STATUS TfliteShapeParser::Parse(const std::unique_ptr<tflite::OperatorT> &tflite
     return RET_NULL_PTR;
   }
 
-  std::unique_ptr<schema::ShapeT> attr(new schema::ShapeT());
+  std::unique_ptr<schema::ShapeT> attr = std::make_unique<schema::ShapeT>();
 
   op->primitive->value.type = schema::PrimitiveType_Shape;
   op->primitive->value.value = attr.release();
diff --git a/mindspore/lite/tools/converter/parser/tflite/tflite_slice_parser.cc b/mindspore/lite/tools/converter/parser/tflite/tflite_slice_parser.cc
index 14d31067235..583d656b32a 100644
--- a/mindspore/lite/tools/converter/parser/tflite/tflite_slice_parser.cc
+++ b/mindspore/lite/tools/converter/parser/tflite/tflite_slice_parser.cc
@@ -41,7 +41,7 @@ STATUS TfliteSliceParser::Parse(const std::unique_ptr<tflite::OperatorT> &tflite
     return RET_NULL_PTR;
   }
 
-  std::unique_ptr<schema::SliceT> attr(new schema::SliceT());
+  std::unique_ptr<schema::SliceT> attr = std::make_unique<schema::SliceT>();
 
   attr->format = schema::Format_NHWC;
 
diff --git a/mindspore/lite/tools/converter/parser/tflite/tflite_softmax_parser.cc b/mindspore/lite/tools/converter/parser/tflite/tflite_softmax_parser.cc
index 5c25d4837a5..c925e006fb1 100644
--- a/mindspore/lite/tools/converter/parser/tflite/tflite_softmax_parser.cc
+++ b/mindspore/lite/tools/converter/parser/tflite/tflite_softmax_parser.cc
@@ -40,7 +40,7 @@ STATUS TfliteSoftmaxParser::Parse(const std::unique_ptr<tflite::OperatorT> &tfli
     return RET_NULL_PTR;
   }
 
-  std::unique_ptr<schema::SoftMaxT> attr(new schema::SoftMaxT());
+  std::unique_ptr<schema::SoftMaxT> attr = std::make_unique<schema::SoftMaxT>();
 
   attr->axis = -1;
 
diff --git a/mindspore/lite/tools/converter/parser/tflite/tflite_space_to_batch_nd_parser.cc b/mindspore/lite/tools/converter/parser/tflite/tflite_space_to_batch_nd_parser.cc
index bfd9e8248f4..304dd095147 100644
--- a/mindspore/lite/tools/converter/parser/tflite/tflite_space_to_batch_nd_parser.cc
+++ b/mindspore/lite/tools/converter/parser/tflite/tflite_space_to_batch_nd_parser.cc
@@ -41,7 +41,7 @@ STATUS TfliteSpaceToBatchNDParser::Parse(const std::unique_ptr<tflite::OperatorT
     return RET_NULL_PTR;
   }
 
-  std::unique_ptr<schema::SpaceToBatchNDT> attr(new schema::SpaceToBatchNDT());
+  std::unique_ptr<schema::SpaceToBatchNDT> attr = std::make_unique<schema::SpaceToBatchNDT>();
 
   if (GetTfliteData(tflite_op->inputs[1], tflite_tensors, tflite_model_buffer, attr->blockShape)) {
     MS_LOG(ERROR) << "get spaceToBatchND -> blockShape failed";
diff --git a/mindspore/lite/tools/converter/parser/tflite/tflite_space_to_depth_parser.cc b/mindspore/lite/tools/converter/parser/tflite/tflite_space_to_depth_parser.cc
index b9dca6927d0..9c71770e255 100644
--- a/mindspore/lite/tools/converter/parser/tflite/tflite_space_to_depth_parser.cc
+++ b/mindspore/lite/tools/converter/parser/tflite/tflite_space_to_depth_parser.cc
@@ -41,7 +41,7 @@ STATUS TfliteSpaceToDepthParser::Parse(const std::unique_ptr<tflite::OperatorT>
     return RET_NULL_PTR;
   }
 
-  std::unique_ptr<schema::SpaceToDepthT> attr(new schema::SpaceToDepthT());
+  std::unique_ptr<schema::SpaceToDepthT> attr = std::make_unique<schema::SpaceToDepthT>();
 
   const auto &tflite_attr = tflite_op->builtin_options.AsSpaceToDepthOptions();
   if (tflite_attr == nullptr) {
diff --git a/mindspore/lite/tools/converter/parser/tflite/tflite_sparse_to_dense_parser.cc b/mindspore/lite/tools/converter/parser/tflite/tflite_sparse_to_dense_parser.cc
index 8859377b96f..2b1228a4129 100644
--- a/mindspore/lite/tools/converter/parser/tflite/tflite_sparse_to_dense_parser.cc
+++ b/mindspore/lite/tools/converter/parser/tflite/tflite_sparse_to_dense_parser.cc
@@ -41,7 +41,7 @@ STATUS TfliteSparseToDenseParser::Parse(const std::unique_ptr<tflite::OperatorT>
     return RET_NULL_PTR;
   }
 
-  std::unique_ptr<schema::SparseToDenseT> attr(new schema::SparseToDenseT());
+  std::unique_ptr<schema::SparseToDenseT> attr = std::make_unique<schema::SparseToDenseT>();
 
   attr->validateIndices = false;
 
diff --git a/mindspore/lite/tools/converter/parser/tflite/tflite_split_parser.cc b/mindspore/lite/tools/converter/parser/tflite/tflite_split_parser.cc
index cf3695eeb10..48df14fb93b 100644
--- a/mindspore/lite/tools/converter/parser/tflite/tflite_split_parser.cc
+++ b/mindspore/lite/tools/converter/parser/tflite/tflite_split_parser.cc
@@ -41,7 +41,7 @@ STATUS TfliteSplitParser::Parse(const std::unique_ptr<tflite::OperatorT> &tflite
     return RET_NULL_PTR;
   }
 
-  std::unique_ptr<schema::SplitT> attr(new schema::SplitT());
+  std::unique_ptr<schema::SplitT> attr = std::make_unique<schema::SplitT>();
 
   const auto &tflite_attr = tflite_op->builtin_options.AsSplitOptions();
   if (tflite_attr == nullptr) {
diff --git a/mindspore/lite/tools/converter/parser/tflite/tflite_split_v_parser.cc b/mindspore/lite/tools/converter/parser/tflite/tflite_split_v_parser.cc
index f134e085cd4..df4e35b76f2 100644
--- a/mindspore/lite/tools/converter/parser/tflite/tflite_split_v_parser.cc
+++ b/mindspore/lite/tools/converter/parser/tflite/tflite_split_v_parser.cc
@@ -39,7 +39,7 @@ STATUS TfliteSplitVParser::Parse(const std::unique_ptr<tflite::OperatorT> &tflit
   }
 
   MS_LOG(DEBUG) << "parse TfliteSplitVParser";
-  std::unique_ptr<schema::SplitT> attr(new schema::SplitT());
+  std::unique_ptr<schema::SplitT> attr = std::make_unique<schema::SplitT>();
 
   const auto &tflite_attr = tflite_op->builtin_options.AsSplitVOptions();
   if (tflite_attr == nullptr) {
diff --git a/mindspore/lite/tools/converter/parser/tflite/tflite_squeeze_parser.cc b/mindspore/lite/tools/converter/parser/tflite/tflite_squeeze_parser.cc
index a5720e4a089..30985814859 100644
--- a/mindspore/lite/tools/converter/parser/tflite/tflite_squeeze_parser.cc
+++ b/mindspore/lite/tools/converter/parser/tflite/tflite_squeeze_parser.cc
@@ -40,7 +40,7 @@ STATUS TfliteSqueezeParser::Parse(const std::unique_ptr<tflite::OperatorT> &tfli
     return RET_NULL_PTR;
   }
 
-  std::unique_ptr<schema::SqueezeT> attr(new schema::SqueezeT());
+  std::unique_ptr<schema::SqueezeT> attr = std::make_unique<schema::SqueezeT>();
 
   const auto &tflite_attr = tflite_op->builtin_options.AsSqueezeOptions();
   if (tflite_attr == nullptr) {
diff --git a/mindspore/lite/tools/converter/parser/tflite/tflite_stack_parser.cc b/mindspore/lite/tools/converter/parser/tflite/tflite_stack_parser.cc
index 63d4f0fbfb3..308f1492a65 100644
--- a/mindspore/lite/tools/converter/parser/tflite/tflite_stack_parser.cc
+++ b/mindspore/lite/tools/converter/parser/tflite/tflite_stack_parser.cc
@@ -40,7 +40,7 @@ STATUS TfliteStackParser::Parse(const std::unique_ptr<tflite::OperatorT> &tflite
     return RET_NULL_PTR;
   }
 
-  std::unique_ptr<schema::StackT> attr(new schema::StackT());
+  std::unique_ptr<schema::StackT> attr = std::make_unique<schema::StackT>();
   const auto &tflite_attr = tflite_op->builtin_options.AsPackOptions();
   if (tflite_attr == nullptr) {
     MS_LOG(ERROR) << "get op: " << op->name.c_str() << " attr failed";
diff --git a/mindspore/lite/tools/converter/parser/tflite/tflite_strided_slice_parser.cc b/mindspore/lite/tools/converter/parser/tflite/tflite_strided_slice_parser.cc
index 123e458665b..dc74b2f8971 100644
--- a/mindspore/lite/tools/converter/parser/tflite/tflite_strided_slice_parser.cc
+++ b/mindspore/lite/tools/converter/parser/tflite/tflite_strided_slice_parser.cc
@@ -39,7 +39,7 @@ STATUS TfliteStridedSliceParser::Parse(const std::unique_ptr<tflite::OperatorT>
   }
 
   MS_LOG(DEBUG) << "parse TfliteStridedSliceParser";
-  std::unique_ptr<schema::StridedSliceT> attr(new schema::StridedSliceT());
+  std::unique_ptr<schema::StridedSliceT> attr = std::make_unique<schema::StridedSliceT>();
   const auto &tflite_attr = tflite_op->builtin_options.AsStridedSliceOptions();
   if (tflite_attr == nullptr) {
     MS_LOG(ERROR) << "get op: %s attr failed", op->name.c_str();
diff --git a/mindspore/lite/tools/converter/parser/tflite/tflite_tile_parser.cc b/mindspore/lite/tools/converter/parser/tflite/tflite_tile_parser.cc
index 6b618829b05..356f2b83af1 100644
--- a/mindspore/lite/tools/converter/parser/tflite/tflite_tile_parser.cc
+++ b/mindspore/lite/tools/converter/parser/tflite/tflite_tile_parser.cc
@@ -41,7 +41,7 @@ STATUS TfliteTileParser::Parse(const std::unique_ptr<tflite::OperatorT> &tflite_
     return RET_NULL_PTR;
   }
 
-  std::unique_ptr<schema::TileT> attr(new schema::TileT());
+  std::unique_ptr<schema::TileT> attr = std::make_unique<schema::TileT>();
 
   if (GetTfliteData(tflite_op->inputs[1], tflite_tensors, tflite_model_buffer, attr->multiples)) {
     MS_LOG(ERROR) << "get tile -> multiples failed";
diff --git a/mindspore/lite/tools/converter/parser/tflite/tflite_topk_v2_parser.cc b/mindspore/lite/tools/converter/parser/tflite/tflite_topk_v2_parser.cc
index fc90e1ead88..c9fb1f48d87 100644
--- a/mindspore/lite/tools/converter/parser/tflite/tflite_topk_v2_parser.cc
+++ b/mindspore/lite/tools/converter/parser/tflite/tflite_topk_v2_parser.cc
@@ -41,7 +41,7 @@ STATUS TfliteTopKV2Parser::Parse(const std::unique_ptr<tflite::OperatorT> &tflit
     return RET_NULL_PTR;
   }
 
-  std::unique_ptr<schema::TopKT> attr(new schema::TopKT());
+  std::unique_ptr<schema::TopKT> attr = std::make_unique<schema::TopKT>();
 
   attr->sorted = true;
   std::vector<int32_t> k;
diff --git a/mindspore/lite/tools/converter/parser/tflite/tflite_transpose_parser.cc b/mindspore/lite/tools/converter/parser/tflite/tflite_transpose_parser.cc
index 759c3d8fc52..3cefb780a64 100644
--- a/mindspore/lite/tools/converter/parser/tflite/tflite_transpose_parser.cc
+++ b/mindspore/lite/tools/converter/parser/tflite/tflite_transpose_parser.cc
@@ -39,7 +39,7 @@ STATUS TfliteTransposeParser::Parse(const std::unique_ptr<tflite::OperatorT> &tf
     return RET_NULL_PTR;
   }
 
-  std::unique_ptr<schema::TransposeT> attr(new schema::TransposeT());
+  std::unique_ptr<schema::TransposeT> attr = std::make_unique<schema::TransposeT>();
 
   if (GetTfliteData(tflite_op->inputs[1], tflite_tensors, tflite_model_buffer, attr->perm)) {
     MS_LOG(ERROR) << "get transpose -> perm failed";
diff --git a/mindspore/lite/tools/converter/parser/tflite/tflite_unique_parser.cc b/mindspore/lite/tools/converter/parser/tflite/tflite_unique_parser.cc
index aa052c250d2..c7e04c7b29b 100644
--- a/mindspore/lite/tools/converter/parser/tflite/tflite_unique_parser.cc
+++ b/mindspore/lite/tools/converter/parser/tflite/tflite_unique_parser.cc
@@ -41,7 +41,7 @@ STATUS TfliteUniqueParser::Parse(const std::unique_ptr<tflite::OperatorT> &tflit
     return RET_NULL_PTR;
   }
 
-  std::unique_ptr<schema::UniqueT> attr(new schema::UniqueT());
+  std::unique_ptr<schema::UniqueT> attr = std::make_unique<schema::UniqueT>();
 
   const auto &tflite_attr = tflite_op->builtin_options.AsUniqueOptions();
   if (tflite_attr == nullptr) {
diff --git a/mindspore/lite/tools/converter/parser/tflite/tflite_unstack_parser.cc b/mindspore/lite/tools/converter/parser/tflite/tflite_unstack_parser.cc
index b78f4fe7991..0b03d27b552 100644
--- a/mindspore/lite/tools/converter/parser/tflite/tflite_unstack_parser.cc
+++ b/mindspore/lite/tools/converter/parser/tflite/tflite_unstack_parser.cc
@@ -42,7 +42,7 @@ STATUS TfliteUnstackParser::Parse(const std::unique_ptr<tflite::OperatorT> &tfli
     return RET_NULL_PTR;
   }
 
-  std::unique_ptr<schema::UnstackT> attr(new schema::UnstackT());
+  std::unique_ptr<schema::UnstackT> attr = std::make_unique<schema::UnstackT>();
 
   const auto &tflite_attr = tflite_op->builtin_options.AsUnpackOptions();
   if (tflite_attr == nullptr) {
diff --git a/mindspore/lite/tools/converter/parser/tflite/tflite_where_parser.cc b/mindspore/lite/tools/converter/parser/tflite/tflite_where_parser.cc
index 88d027e41a2..61e0bfcfa9a 100644
--- a/mindspore/lite/tools/converter/parser/tflite/tflite_where_parser.cc
+++ b/mindspore/lite/tools/converter/parser/tflite/tflite_where_parser.cc
@@ -41,7 +41,7 @@ STATUS TfliteWhereParser::Parse(const std::unique_ptr<tflite::OperatorT> &tflite
     return RET_NULL_PTR;
   }
 
-  std::unique_ptr<schema::WhereT> attr(new schema::WhereT());
+  std::unique_ptr<schema::WhereT> attr = std::make_unique<schema::WhereT>();
 
   if (GetTfliteData(tflite_op->inputs[0], tflite_tensors, tflite_model_buffer, attr->condition)) {
     MS_LOG(ERROR) << "get where -> condition failed";
diff --git a/mindspore/lite/tools/converter/parser/tflite/tflite_zeros_like_parser.cc b/mindspore/lite/tools/converter/parser/tflite/tflite_zeros_like_parser.cc
index d5c1750d598..36170b7d93c 100644
--- a/mindspore/lite/tools/converter/parser/tflite/tflite_zeros_like_parser.cc
+++ b/mindspore/lite/tools/converter/parser/tflite/tflite_zeros_like_parser.cc
@@ -41,7 +41,7 @@ STATUS TfliteZerosLikeParser::Parse(const std::unique_ptr<tflite::OperatorT> &tf
     return RET_NULL_PTR;
   }
 
-  std::unique_ptr<schema::ZerosLikeT> attr(new schema::ZerosLikeT());
+  std::unique_ptr<schema::ZerosLikeT> attr = std::make_unique<schema::ZerosLikeT>();
 
   op->primitive->value.type = schema::PrimitiveType_ZerosLike;
   op->primitive->value.value = attr.release();