diff --git a/model_zoo/official/cv/crnn/ascend310_infer/src/main.cc b/model_zoo/official/cv/crnn/ascend310_infer/src/main.cc
index a815c4b95c5..daf1c1813e1 100644
--- a/model_zoo/official/cv/crnn/ascend310_infer/src/main.cc
+++ b/model_zoo/official/cv/crnn/ascend310_infer/src/main.cc
@@ -33,12 +33,12 @@
 
 #include "inc/utils.h"
 
-using mindspore::GlobalContext;
+using mindspore::Context;
 using mindspore::Serialization;
 using mindspore::Model;
-using mindspore::ModelContext;
 using mindspore::Status;
 using mindspore::ModelType;
+using mindspore::Graph;
 using mindspore::GraphCell;
 using mindspore::kSuccess;
 using mindspore::MSTensor;
@@ -64,21 +64,28 @@ int main(int argc, char **argv) {
     return 1;
   }
 
-  GlobalContext::SetGlobalDeviceTarget(mindspore::kDeviceTypeAscend310);
-  GlobalContext::SetGlobalDeviceID(FLAGS_device_id);
-  auto graph = Serialization::LoadModel(FLAGS_mindir_path, ModelType::kMindIR);
-  auto model_context = std::make_shared<mindspore::ModelContext>();
-  if (!FLAGS_aipp_path.empty()) {
-    ModelContext::SetInsertOpConfigPath(model_context, FLAGS_aipp_path);
+  auto context = std::make_shared<Context>();
+  auto ascend310_info = std::make_shared<mindspore::Ascend310DeviceInfo>();
+  ascend310_info->SetDeviceID(FLAGS_device_id);
+  ascend310_info->SetInsertOpConfigPath({FLAGS_aipp_path});
+  context->MutableDeviceInfo().push_back(ascend310_info);
+
+  Graph graph;
+  Status ret = Serialization::Load(FLAGS_mindir_path, ModelType::kMindIR, &graph);
+  if (ret != kSuccess) {
+    std::cout << "Load model failed." << std::endl;
+    return 1;
   }
 
-  Model model(GraphCell(graph), model_context);
-  Status ret = model.Build();
+  Model model;
+  ret = model.Build(GraphCell(graph), context);
   if (ret != kSuccess) {
     std::cout << "ERROR: Build failed." << std::endl;
     return 1;
   }
 
+  std::vector<MSTensor> modelInputs = model.GetInputs();
+
   auto allFiles = GetAllFiles(FLAGS_dataset_path);
   if (allFiles.empty()) {
     std::cout << "ERROR: no input data." << std::endl;
@@ -108,11 +115,12 @@ int main(int argc, char **argv) {
       std::cout << "wrong file format: " << allFiles[i] << std::endl;
       continue;
     }
-    auto img = std::make_shared<MSTensor>();
-    compose(ReadFileToTensor(allFiles[i]), img.get());
 
-    inputs.emplace_back(img->Name(), img->DataType(), img->Shape(),
-                        img->Data().get(), img->DataSize());
+    mindspore::MSTensor img;
+    compose(ReadFileToTensor(allFiles[i]), &img);
+
+    inputs.emplace_back(modelInputs[0].Name(), modelInputs[0].DataType(), modelInputs[0].Shape(),
+                            img.Data().get(), img.DataSize());
 
     gettimeofday(&start, NULL);
     ret = model.Predict(inputs, &outputs);
diff --git a/model_zoo/official/cv/ctpn/ascend310_infer/src/main.cc b/model_zoo/official/cv/ctpn/ascend310_infer/src/main.cc
index 4c20c852731..5c07a3c8537 100644
--- a/model_zoo/official/cv/ctpn/ascend310_infer/src/main.cc
+++ b/model_zoo/official/cv/ctpn/ascend310_infer/src/main.cc
@@ -34,12 +34,12 @@
 #include "include/api/serialization.h"
 #include "include/api/context.h"
 
-using mindspore::GlobalContext;
 using mindspore::Serialization;
 using mindspore::Model;
-using mindspore::ModelContext;
+using mindspore::Context;
 using mindspore::Status;
 using mindspore::ModelType;
+using mindspore::Graph;
 using mindspore::GraphCell;
 using mindspore::kSuccess;
 using mindspore::MSTensor;
@@ -71,18 +71,27 @@ int main(int argc, char **argv) {
       return 1;
     }
 
-    GlobalContext::SetGlobalDeviceTarget(FLAGS_device_target);
-    GlobalContext::SetGlobalDeviceID(FLAGS_device_id);
+    auto context = std::make_shared<Context>();
+    auto ascend310_info = std::make_shared<mindspore::Ascend310DeviceInfo>();
+    ascend310_info->SetDeviceID(FLAGS_device_id);
+    context->MutableDeviceInfo().push_back(ascend310_info);
 
-    auto graph = Serialization::LoadModel(FLAGS_model_path, ModelType::kMindIR);
-
-    Model model((GraphCell(graph)));
-    Status ret = model.Build();
+    Graph graph;
+    Status ret = Serialization::Load(FLAGS_model_path, ModelType::kMindIR, &graph);
     if (ret != kSuccess) {
-        std::cout << "ERROR Build failed." << std::endl;
+        std::cout << "Load model failed." << std::endl;
         return 1;
     }
 
+    Model model;
+    ret = model.Build(GraphCell(graph), context);
+    if (ret != kSuccess) {
+        std::cout << "ERROR: Build failed." << std::endl;
+        return 1;
+    }
+
+    std::vector<MSTensor> modelInputs = model.GetInputs();
+
     auto all_files = GetAllFiles(FLAGS_dataset_path);
     if (all_files.empty()) {
         std::cout << "ERROR: no input data." << std::endl;
@@ -118,7 +127,8 @@ int main(int argc, char **argv) {
         transform(image, &image);
         transformCast(image, &image);
 
-        inputs.emplace_back(image);
+        inputs.emplace_back(modelInputs[0].Name(), modelInputs[0].DataType(), modelInputs[0].Shape(),
+                            image.Data().get(), image.DataSize());
 
         gettimeofday(&start, NULL);
         model.Predict(inputs, &outputs);
diff --git a/model_zoo/official/cv/faster_rcnn/ascend310_infer/src/AclProcess.cpp b/model_zoo/official/cv/faster_rcnn/ascend310_infer/src/AclProcess.cpp
index ff0d7f75a17..a70448e16e5 100755
--- a/model_zoo/official/cv/faster_rcnn/ascend310_infer/src/AclProcess.cpp
+++ b/model_zoo/official/cv/faster_rcnn/ascend310_infer/src/AclProcess.cpp
@@ -165,6 +165,10 @@ int AclProcess::WriteResult(const std::string& imageFile) {
         std::string outFileName = homePath + "/" + fileName;
         try {
             FILE * outputFile = fopen(outFileName.c_str(), "wb");
+            if (outputFile == nullptr) {
+                std::cout << "open result file " << outFileName << " failed" << std::endl;
+                return INVALID_POINTER;
+            }
             fwrite(resHostBuf, output_size, sizeof(char), outputFile);
             fclose(outputFile);
             outputFile = nullptr;
diff --git a/model_zoo/official/cv/faster_rcnn/ascend310_infer/src/main.cpp b/model_zoo/official/cv/faster_rcnn/ascend310_infer/src/main.cpp
index c2c998a011b..63b46694e9d 100755
--- a/model_zoo/official/cv/faster_rcnn/ascend310_infer/src/main.cpp
+++ b/model_zoo/official/cv/faster_rcnn/ascend310_infer/src/main.cpp
@@ -79,7 +79,11 @@ int main(int argc, char* argv[]) {
         return ret;
     }
     if (is_file(FLAGS_data_path)) {
-        aclProcess.Process(FLAGS_data_path, &costTime_map);
+        ret = aclProcess.Process(FLAGS_data_path, &costTime_map);
+        if (ret != OK) {
+            std::cout << "model process failed, errno = " << ret << std::endl;
+            return ret;
+        }
     } else if (is_dir(FLAGS_data_path)) {
         struct dirent * filename;
         DIR * dir;
@@ -93,7 +97,11 @@ int main(int argc, char* argv[]) {
                 continue;
             }
             std::string wholePath = FLAGS_data_path + "/" + filename->d_name;
-            aclProcess.Process(wholePath, &costTime_map);
+            ret = aclProcess.Process(wholePath, &costTime_map);
+            if (ret != OK) {
+                std::cout << "model process failed, errno = " << ret << std::endl;
+                return ret;
+            }
         }
     } else {
         std::cout << " input image path error" << std::endl;
diff --git a/model_zoo/official/cv/maskrcnn/ascend310_infer/src/AclProcess.cpp b/model_zoo/official/cv/maskrcnn/ascend310_infer/src/AclProcess.cpp
index 20b0e45b3cf..addafb05be0 100755
--- a/model_zoo/official/cv/maskrcnn/ascend310_infer/src/AclProcess.cpp
+++ b/model_zoo/official/cv/maskrcnn/ascend310_infer/src/AclProcess.cpp
@@ -165,6 +165,10 @@ int AclProcess::WriteResult(const std::string& imageFile) {
         std::string outFileName = homePath + "/" + fileName;
         try {
             FILE * outputFile = fopen(outFileName.c_str(), "wb");
+            if (outputFile == nullptr) {
+                std::cout << "open result file " << outFileName << " failed" << std::endl;
+                return INVALID_POINTER;
+            }
             fwrite(resHostBuf, output_size, sizeof(char), outputFile);
             fclose(outputFile);
             outputFile = nullptr;
diff --git a/model_zoo/official/cv/maskrcnn/ascend310_infer/src/main.cpp b/model_zoo/official/cv/maskrcnn/ascend310_infer/src/main.cpp
index 9c0d831d5ca..fbed56bcc5f 100755
--- a/model_zoo/official/cv/maskrcnn/ascend310_infer/src/main.cpp
+++ b/model_zoo/official/cv/maskrcnn/ascend310_infer/src/main.cpp
@@ -79,7 +79,11 @@ int main(int argc, char* argv[]) {
         return ret;
     }
     if (is_file(FLAGS_data_path)) {
-        aclProcess.Process(FLAGS_data_path, &costTime_map);
+        ret = aclProcess.Process(FLAGS_data_path, &costTime_map);
+        if (ret != OK) {
+            std::cout << "model process failed, errno = " << ret << std::endl;
+            return ret;
+        }
     } else if (is_dir(FLAGS_data_path)) {
         struct dirent * filename;
         DIR * dir;
@@ -93,7 +97,11 @@ int main(int argc, char* argv[]) {
                 continue;
             }
             std::string wholePath = FLAGS_data_path + "/" + filename->d_name;
-            aclProcess.Process(wholePath, &costTime_map);
+            ret = aclProcess.Process(wholePath, &costTime_map);
+            if (ret != OK) {
+                std::cout << "model process failed, errno = " << ret << std::endl;
+                return ret;
+            }
         }
     } else {
         std::cout << " input image path error" << std::endl;