diff --git a/mindspore/ccsrc/backend/kernel_compiler/cpu/nnacl/infer/addn_infer.c b/mindspore/ccsrc/backend/kernel_compiler/cpu/nnacl/infer/addn_infer.c
index 07133d18923..66b1ee9b5ae 100644
--- a/mindspore/ccsrc/backend/kernel_compiler/cpu/nnacl/infer/addn_infer.c
+++ b/mindspore/ccsrc/backend/kernel_compiler/cpu/nnacl/infer/addn_infer.c
@@ -53,9 +53,6 @@ int AddnInferShape(const TensorC *const *inputs, size_t inputs_size, TensorC **o
     if ((inputs[i]->shape_size_ != max_dims) && (GetElementNum(inputs[i]) != GetElementNum(inputs[max_dims_idx]))) {
       return NNACL_ERR;
     }
-    if (inputs[i]->data_type_ != inputs[0]->data_type_) {
-      return NNACL_ERR;
-    }
   }
 
   for (size_t d = 0; d < input->shape_size_; ++d) {
diff --git a/mindspore/ccsrc/backend/kernel_compiler/cpu/nnacl/infer/arithmetic_infer.c b/mindspore/ccsrc/backend/kernel_compiler/cpu/nnacl/infer/arithmetic_infer.c
index edf38a52bb5..74f6ae4eeca 100644
--- a/mindspore/ccsrc/backend/kernel_compiler/cpu/nnacl/infer/arithmetic_infer.c
+++ b/mindspore/ccsrc/backend/kernel_compiler/cpu/nnacl/infer/arithmetic_infer.c
@@ -39,6 +39,10 @@ int ArithmeticInferShape(const TensorC *const *inputs, size_t inputs_size, Tenso
   size_t input_shape1_size = input1->shape_size_;
   output->format_ = input0->format_;
   output->data_type_ = input0->data_type_;
+  if ((input0->data_type_ == kNumberTypeInt8) && (input1->data_type_ == kNumberTypeFloat32)) {
+    output->data_type_ = input1->data_type_;
+  }
+
   if (!parameter->infer_flag_) {
     return NNACL_INFER_INVALID;
   }
diff --git a/mindspore/lite/examples/train_lenet/model/prepare_model.sh b/mindspore/lite/examples/train_lenet/model/prepare_model.sh
index ae6816d80fe..5656233b554 100755
--- a/mindspore/lite/examples/train_lenet/model/prepare_model.sh
+++ b/mindspore/lite/examples/train_lenet/model/prepare_model.sh
@@ -28,5 +28,10 @@ if [ ! -f "$CONVERTER" ]; then
 fi
 
 echo "============Converting========="
-LD_LIBRARY_PATH=./ $CONVERTER --fmk=MINDIR --trainModel=true --modelFile=lenet_tod.mindir --outputFile=lenet_tod
+QUANT_OPTIONS=""
+if [[ ! -z ${QUANTIZE} ]]; then
+  echo "Quantizing weights"
+  QUANT_OPTIONS="--quantType=WeightQuant --bitNum=8 --quantWeightSize=100 --quantWeightChannel=15"
+fi
+LD_LIBRARY_PATH=./ $CONVERTER --fmk=MINDIR --trainModel=true --modelFile=lenet_tod.mindir --outputFile=lenet_tod $QUANT_OPTIONS
 
diff --git a/mindspore/lite/examples/train_lenet/prepare_and_run.sh b/mindspore/lite/examples/train_lenet/prepare_and_run.sh
index 904f6c59a3d..d2757f4d236 100755
--- a/mindspore/lite/examples/train_lenet/prepare_and_run.sh
+++ b/mindspore/lite/examples/train_lenet/prepare_and_run.sh
@@ -2,7 +2,7 @@
 
 display_usage()
 {
-  echo -e "\nUsage: prepare_and_run.sh -D dataset_path [-d mindspore_docker] [-r release.tar.gz] [-t arm64|x86]\n"
+  echo -e "\nUsage: prepare_and_run.sh -D dataset_path [-d mindspore_docker] [-r release.tar.gz] [-t arm64|x86] [-q]\n"
 }
 
 checkopts()
@@ -10,7 +10,8 @@ checkopts()
   TARGET="arm64"
   DOCKER=""
   MNIST_DATA_PATH=""
-  while getopts 'D:d:r:t:' opt
+  QUANTIZE=""
+  while getopts 'D:d:r:t:q' opt
   do
     case "${opt}" in
       D)
@@ -31,6 +32,9 @@ checkopts()
       r)
         TARBALL=$OPTARG
         ;;
+      q)
+        QUANTIZE="QUANTIZE"
+        ;;
       *)
         echo "Unknown option ${opt}!"
         display_usage
@@ -64,7 +68,7 @@ fi
 # Prepare the model
 cd model/ || exit 1
 rm -f *.ms
-./prepare_model.sh $DOCKER || exit 1
+QUANTIZE=${QUANTIZE} ./prepare_model.sh $DOCKER || exit 1
 cd ../
 
 # Copy the .ms model to the package folder
diff --git a/mindspore/lite/examples/train_lenet/src/net_runner.cc b/mindspore/lite/examples/train_lenet/src/net_runner.cc
index f52ae1c4dd4..5e4dea836fc 100644
--- a/mindspore/lite/examples/train_lenet/src/net_runner.cc
+++ b/mindspore/lite/examples/train_lenet/src/net_runner.cc
@@ -110,6 +110,9 @@ void NetRunner::InitAndFigureInputs() {
   MS_ASSERT(nullptr != session_);
   loop_ = mindspore::session::TrainLoop::CreateTrainLoop(session_);
 
+  if (verbose_) {
+    loop_->SetKernelCallBack(nullptr, after_callback);
+  }
   acc_metrics_ = std::shared_ptr<AccuracyMetrics>(new AccuracyMetrics);
 
   loop_->Init({acc_metrics_.get()});
@@ -125,11 +128,11 @@ void NetRunner::InitAndFigureInputs() {
 
 float NetRunner::CalculateAccuracy(int max_tests) {
   test_ds_ = Mnist(data_dir_ + "/test", "all");
-  TypeCast typecast_f("float32");
+  TypeCast typecast_f(mindspore::DataType::kNumberTypeFloat32);
   Resize resize({h_, w_});
   test_ds_ = test_ds_->Map({&resize, &typecast_f}, {"image"});
 
-  TypeCast typecast("int32");
+  TypeCast typecast(mindspore::DataType::kNumberTypeInt32);
   test_ds_ = test_ds_->Map({&typecast}, {"label"});
   test_ds_ = test_ds_->Batch(batch_size_, true);
 
@@ -144,14 +147,14 @@ float NetRunner::CalculateAccuracy(int max_tests) {
 int NetRunner::InitDB() {
   train_ds_ = Mnist(data_dir_ + "/train", "all");
 
-  TypeCast typecast_f("float32");
+  TypeCast typecast_f(mindspore::DataType::kNumberTypeFloat32);
   Resize resize({h_, w_});
   train_ds_ = train_ds_->Map({&resize, &typecast_f}, {"image"});
 
-  TypeCast typecast("int32");
+  TypeCast typecast(mindspore::DataType::kNumberTypeInt32);
   train_ds_ = train_ds_->Map({&typecast}, {"label"});
 
-  train_ds_ = train_ds_->Shuffle(2);
+  // train_ds_ = train_ds_->Shuffle(2);
   train_ds_ = train_ds_->Batch(batch_size_, true);
 
   if (verbose_) {
diff --git a/mindspore/lite/examples/transfer_learning/src/net_runner.cc b/mindspore/lite/examples/transfer_learning/src/net_runner.cc
index cc0db4ae537..844f0f60d29 100644
--- a/mindspore/lite/examples/transfer_learning/src/net_runner.cc
+++ b/mindspore/lite/examples/transfer_learning/src/net_runner.cc
@@ -187,7 +187,7 @@ int NetRunner::TrainLoop() {
     if (save_checkpoint_ != 0 && (i + 1) % save_checkpoint_ == 0) {
       auto cpkt_fn =
         ms_head_file_.substr(0, ms_head_file_.find_last_of('.')) + "_trained_" + std::to_string(i + 1) + ".ms";
-      session_->SaveToFile(cpkt_fn);
+      mindspore::lite::Model::Export(head_model_, cpkt_fn.c_str());
     }
 
     std::cout << i + 1 << ": Loss is " << loss << " [min=" << min_loss << "]" << std::endl;
@@ -213,7 +213,7 @@ int NetRunner::Main() {
 
   if (cycles_ > 0) {
     auto trained_fn = ms_head_file_.substr(0, ms_head_file_.find_last_of('.')) + "_trained.ms";
-    session_->SaveToFile(trained_fn);
+    mindspore::lite::Model::Export(head_model_, trained_fn.c_str());
   }
   return 0;
 }
diff --git a/mindspore/lite/examples/transfer_learning/src/net_runner.h b/mindspore/lite/examples/transfer_learning/src/net_runner.h
index a807bf706f3..e25da59a9b6 100644
--- a/mindspore/lite/examples/transfer_learning/src/net_runner.h
+++ b/mindspore/lite/examples/transfer_learning/src/net_runner.h
@@ -44,6 +44,8 @@ class NetRunner {
 
   DataSet ds_;
   mindspore::session::TrainSession *session_ = nullptr;
+  mindspore::lite::Model *backbone_model_ = nullptr;
+  mindspore::lite::Model *head_model_ = nullptr;
 
   std::string ms_backbone_file_ = "";
   std::string ms_head_file_ = "";
diff --git a/mindspore/lite/tools/converter/converter_flags.cc b/mindspore/lite/tools/converter/converter_flags.cc
index 5ff98aaa20c..725e228a1be 100644
--- a/mindspore/lite/tools/converter/converter_flags.cc
+++ b/mindspore/lite/tools/converter/converter_flags.cc
@@ -176,10 +176,6 @@ int Flags::InitTrainModel() {
       std::cerr << "INPUT ILLEGAL: train model converter supporting only FP32 output tensors";
       return RET_INPUT_PARAM_INVALID;
     }
-    if (this->quantType != QuantType_QUANT_NONE) {
-      std::cerr << "INPUT ILLEGAL: train model converter is not supporting quantization";
-      return RET_INPUT_PARAM_INVALID;
-    }
   }
   return RET_OK;
 }
diff --git a/mindspore/lite/tools/converter/quantizer/quantize_util.cc b/mindspore/lite/tools/converter/quantizer/quantize_util.cc
index bed6a79a06c..a8482ad36e0 100644
--- a/mindspore/lite/tools/converter/quantizer/quantize_util.cc
+++ b/mindspore/lite/tools/converter/quantizer/quantize_util.cc
@@ -181,6 +181,57 @@ bool QuantStrategy::CanMulOpQuantized(const CNodePtr &node) const {
   return true;
 }
 
+bool QuantStrategy::CanTensorQuantized(const AnfNodePtr &inputNode) const {
+  if (inputNode == nullptr) {
+    MS_LOG(INFO) << "CanTensorQuantized input is nullptr!";
+    return false;
+  }
+  ParameterPtr paramNode = nullptr;
+
+  if (inputNode->isa<Parameter>()) {
+    paramNode = inputNode->cast<ParameterPtr>();
+  }
+
+  if (paramNode == nullptr) {
+    MS_LOG(INFO) << "CanTensorQuantized invalid paramNode!";
+    return false;
+  }
+
+  auto abstract_base = paramNode->abstract();
+  if (abstract_base == nullptr) {
+    MS_LOG(INFO) << "abstract is nullptr";
+    return false;
+  }
+
+  if (!utils::isa<abstract::ShapePtr>(abstract_base->GetShapeTrack())) {
+    MS_LOG(INFO) << "Shape of Abstract of parameter should be ShapePtr " << paramNode->name();
+    return false;
+  }
+
+  auto weight_shape = utils::cast<abstract::ShapePtr>(abstract_base->GetShapeTrack())->shape();
+  if (weight_shape.size() < 2) {  // do not quant single dim tensors
+    return false;
+  }
+
+  size_t shapeSize = 1;
+  for (auto dim : weight_shape) {
+    shapeSize = shapeSize * dim;
+  }
+  if (shapeSize < m_weight_size_) {
+    MS_LOG(INFO) << "shapeSize Invalid!" << shapeSize;
+    return false;
+  }
+
+  if (weight_shape.size() == 4) {  // assume Convolution
+    if (weight_shape[0] <= static_cast<int>(m_conv_weight_quant_channel_threshold_)) {
+      MS_LOG(INFO) << "channel less m_conv_weight_quant_channel_threshold_!" << weight_shape[0];
+      return false;
+    }
+  }
+
+  return true;
+}
+
 QuantParamHolderPtr GetCNodeQuantHolder(const PrimitivePtr &primitive) {
   MS_ASSERT(primitive != nullptr);
   QuantParamHolderPtr quant_params_holder = nullptr;
diff --git a/mindspore/lite/tools/converter/quantizer/quantize_util.h b/mindspore/lite/tools/converter/quantizer/quantize_util.h
index cb56f80c2ba..8c12f78f66f 100644
--- a/mindspore/lite/tools/converter/quantizer/quantize_util.h
+++ b/mindspore/lite/tools/converter/quantizer/quantize_util.h
@@ -14,8 +14,8 @@
  * limitations under the License.
  */
 
-#ifndef MINDSPORE_LITE_TOOLS_CONVERTER_QUANTIZER_QUANTIZER_UTIL_H
-#define MINDSPORE_LITE_TOOLS_CONVERTER_QUANTIZER_QUANTIZER_UTIL_H
+#ifndef MINDSPORE_LITE_TOOLS_CONVERTER_QUANTIZER_QUANTIZE_UTIL_H_
+#define MINDSPORE_LITE_TOOLS_CONVERTER_QUANTIZER_QUANTIZE_UTIL_H_
 
 #include <dirent.h>
 #include <sys/stat.h>
@@ -83,6 +83,7 @@ class QuantStrategy {
   bool CanConvOpQuantized(const CNodePtr &node) const;
   bool CanMulOpQuantized(const CNodePtr &node) const;
   bool CanOpPostQuantized(AnfNodePtr &node) const;
+  bool CanTensorQuantized(const AnfNodePtr &inputNode) const;
 
   size_t m_weight_size_;
   size_t m_conv_weight_quant_channel_threshold_;
@@ -417,4 +418,4 @@ FuncGraphPtr CopyFuncGraph(const FuncGraphPtr &);
 
 void GetLiteParameter(const AnfNodePtr &node, ParameterPtr *param_node, tensor::TensorPtr *tensor_info);
 }  // namespace mindspore::lite::quant
-#endif
+#endif  // MINDSPORE_LITE_TOOLS_CONVERTER_QUANTIZER_QUANTIZE_UTIL_H_
diff --git a/mindspore/lite/tools/converter/quantizer/weight_quantizer.cc b/mindspore/lite/tools/converter/quantizer/weight_quantizer.cc
index c3235a37a8d..b5c96abb72b 100644
--- a/mindspore/lite/tools/converter/quantizer/weight_quantizer.cc
+++ b/mindspore/lite/tools/converter/quantizer/weight_quantizer.cc
@@ -75,6 +75,7 @@ STATUS WeightQuantizer::SetAbstract(const tensor::TensorPtr &tensor_info, const
   auto quant_param_holder = GetCNodeQuantHolder(primitive);
   quant_param_holder->set_quant_type(schema::QuantType_QUANT_WEIGHT);
 
+  weight_quantized_tensors.insert({tensor_info, param_node});
   return RET_OK;
 }
 
@@ -244,6 +245,82 @@ STATUS WeightQuantizer::DoGatherQuantize(const CNodePtr &cnode) {
   return RET_OK;
 }
 
+STATUS WeightQuantizer::DoOptimizerQuantize(const CNodePtr &cnode) {
+  auto primitive = GetValueNode<PrimitivePtr>(cnode->input(0));
+  MS_ASSERT(primitive != nullptr);
+
+  std::vector<int> weight_indices = {2};
+  if (opt::CheckPrimitiveType(cnode, prim::kPrimAdam)) {
+    weight_indices = {2, 3};
+  }
+  if (opt::CheckPrimitiveType(cnode, prim::kPrimSGD)) {
+    weight_indices = {4, 6};
+  }
+
+  for (int idx : weight_indices) {
+    auto input = cnode->input(idx);
+    if (!quant_strategy_->CanTensorQuantized(input)) {
+      MS_LOG(INFO) << "Input " << idx << "of Optimizer is not quantizable";
+      continue;
+    }
+    ParameterPtr param_node;
+    tensor::TensorPtr tensor_info;
+    GetLiteParameter(input, &param_node, &tensor_info);
+    if (param_node == nullptr || tensor_info == nullptr || tensor_info->data_type() != TypeId::kNumberTypeFloat32) {
+      MS_LOG(INFO) << "This Gather op " << cnode->fullname_with_scope() << " can not quant weight";
+      return RET_OK;
+    }
+
+    auto status = RET_ERROR;
+    if (type_id_ == kNumberTypeInt8) {
+      status = QuantFilter<int8_t>(tensor_info, primitive, QuantType_WeightQuant, quant_max_, quant_min_, bit_num_,
+                                   false, type_id_, idx - 1);
+    } else if (type_id_ == kNumberTypeInt16) {
+      status = QuantFilter<int16_t>(tensor_info, primitive, QuantType_WeightQuant, quant_max_, quant_min_, bit_num_,
+                                    false, type_id_, idx - 1);
+    }
+    if (status != RET_OK && status != RET_CONTINUE) {
+      MS_LOG(ERROR) << "QuantFilter failed : " << status;
+      return status;
+    }
+    status = SetAbstract(tensor_info, param_node, primitive);
+    if (status != RET_OK) {
+      MS_LOG(ERROR) << "SetAbstract failed : " << status;
+      return RET_ERROR;
+    }
+  }
+  return RET_OK;
+}
+
+STATUS WeightQuantizer::DoMarkWeightQuantizeIfQuantized(const CNodePtr &cnode) {
+  auto primitive = GetValueNode<PrimitivePtr>(cnode->input(0));
+  if (primitive == nullptr) {
+    MS_LOG(ERROR) << "primitive is nullptr";
+    return RET_ERROR;
+  }
+
+  auto quant_param_holder = GetCNodeQuantHolder(primitive);
+  if (quant_param_holder->quant_type() == schema::QuantType_QUANT_WEIGHT) {
+    // already marked with QUANT_WEIGHT
+    return RET_OK;
+  }
+
+  for (size_t i = 1; i < cnode->size(); i++) {
+    auto inputNode = cnode->input(i);
+    if (inputNode->isa<Parameter>()) {
+      ParameterPtr param_node;
+      tensor::TensorPtr tensor_info;
+      GetLiteParameter(inputNode, &param_node, &tensor_info);
+      auto param = weight_quantized_tensors.find(tensor_info);
+      if (param != weight_quantized_tensors.end()) {
+        quant_param_holder->set_quant_type(schema::QuantType_QUANT_WEIGHT);
+        continue;
+      }
+    }
+  }
+  return RET_OK;
+}
+
 STATUS WeightQuantizer::ProcessLstmWeightByIndex(const CNodePtr &cnode, const PrimitivePtr &primitive,
                                                  const int &index) {
   auto op_name = cnode->fullname_with_scope();
@@ -649,6 +726,8 @@ STATUS WeightQuantizer::DoMixedQuant(const FuncGraphPtr &func_graph) {
 
 STATUS WeightQuantizer::DoFixedQuant(const FuncGraphPtr &func_graph) {
   MS_ASSERT(func_graph != nullptr);
+  weight_quantized_tensors.clear();
+
   for (auto &cnode : func_graph->GetOrderedCnodes()) {
     auto primitive = GetValueNode<std::shared_ptr<ops::PrimitiveC>>(cnode->input(0));
     if (primitive == nullptr) {
@@ -681,10 +760,34 @@ STATUS WeightQuantizer::DoFixedQuant(const FuncGraphPtr &func_graph) {
         MS_LOG(ERROR) << "DoGatherQuantize error";
         return RET_ERROR;
       }
+    } else if ((opt::CheckPrimitiveType(cnode, prim::kPrimAdam)) || (opt::CheckPrimitiveType(cnode, prim::kPrimSGD)) ||
+               (opt::CheckPrimitiveType(cnode, prim::kPrimApplyMomentum))) {
+      auto status = DoOptimizerQuantize(cnode);
+      if (status != RET_OK) {
+        MS_LOG(ERROR) << "DoOptimizerQuantize error";
+        return RET_ERROR;
+      }
     } else {
       MS_LOG(DEBUG) << op_name << " of type: " << primitive->name() << " no need quant";
     }
   }
+  return MarkWeightQuantizationInNodes(func_graph);
+}
+
+STATUS WeightQuantizer::MarkWeightQuantizationInNodes(const FuncGraphPtr &func_graph) {
+  MS_ASSERT(func_graph != nullptr);
+  for (auto &cnode : func_graph->GetOrderedCnodes()) {
+    auto primitive = GetValueNode<std::shared_ptr<ops::PrimitiveC>>(cnode->input(0));
+    if (primitive == nullptr) {
+      MS_LOG(DEBUG) << cnode->fullname_with_scope() << " : primitive is nullptr";
+      continue;
+    }
+    auto status = DoMarkWeightQuantizeIfQuantized(cnode);
+    if (status != RET_OK) {
+      MS_LOG(ERROR) << "MarkWeightQuantizationInNodes error marking " << cnode->fullname_with_scope();
+      return RET_ERROR;
+    }
+  }
   return RET_OK;
 }
 
diff --git a/mindspore/lite/tools/converter/quantizer/weight_quantizer.h b/mindspore/lite/tools/converter/quantizer/weight_quantizer.h
index 111de02303c..13a54701de5 100644
--- a/mindspore/lite/tools/converter/quantizer/weight_quantizer.h
+++ b/mindspore/lite/tools/converter/quantizer/weight_quantizer.h
@@ -14,8 +14,8 @@
  * limitations under the License.
  */
 
-#ifndef MINDSPORE_LITE_TOOLS_CONVERTER_QUANTIZER_WEIGHT_QUANTIZER_H
-#define MINDSPORE_LITE_TOOLS_CONVERTER_QUANTIZER_WEIGHT_QUANTIZER_H
+#ifndef MINDSPORE_LITE_TOOLS_CONVERTER_QUANTIZER_WEIGHT_QUANTIZER_H_
+#define MINDSPORE_LITE_TOOLS_CONVERTER_QUANTIZER_WEIGHT_QUANTIZER_H_
 
 #include <future>
 #include <memory>
@@ -43,6 +43,7 @@ class WeightQuantizer : public Quantizer {
   STATUS DoQuantize(FuncGraphPtr func_graph) override;
   STATUS DoConvQuantize(const CNodePtr &);
   STATUS DoMulQuantize(const CNodePtr &);
+  STATUS DoOptimizerQuantize(const CNodePtr &);
   STATUS DoLstmQuantize(const CNodePtr &cnode);
   STATUS DoGatherQuantize(const CNodePtr &cnode);
 
@@ -57,6 +58,7 @@ class WeightQuantizer : public Quantizer {
   std::unique_ptr<QuantStrategy> quant_strategy_;
   size_t bit_num_{8};
   std::string config_file_;
+  std::map<tensor::TensorPtr, ParameterPtr> weight_quantized_tensors;
   PostQuantConfig config_param_;
   std::vector<std::vector<std::string>> images_;  // multi_input, [[mode_input_0], [model_input_1]...]
   std::vector<std::unordered_map<std::string, mindspore::tensor::MSTensor *>> fp32_output_tensors_;
@@ -65,6 +67,8 @@ class WeightQuantizer : public Quantizer {
   STATUS SetAbstract(const tensor::TensorPtr &tensor_info, const ParameterPtr &param_node,
                      const PrimitivePtr &primitive);
   STATUS DoFixedQuant(const FuncGraphPtr &);
+  STATUS MarkWeightQuantizationInNodes(const FuncGraphPtr &);
+  STATUS DoMarkWeightQuantizeIfQuantized(const CNodePtr &);
   STATUS RunFp32Graph(const FuncGraphPtr &);
 
   STATUS DoMixedQuantize(const FuncGraphPtr &func_graph);
@@ -74,6 +78,7 @@ class WeightQuantizer : public Quantizer {
   STATUS TryQuant(const int &bit_num_t, const ParameterPtr &param_node, const tensor::TensorPtr &tensor_info,
                   const PrimitivePtr &primitive);
   STATUS DoQuantSearch(const FuncGraphPtr &func_graph);
+  STATUS DoTensorQuantize(const CNodePtr &);
 };
 }  // namespace mindspore::lite::quant
-#endif
+#endif  // MINDSPORE_LITE_TOOLS_CONVERTER_QUANTIZER_WEIGHT_QUANTIZER_H_