diff --git a/mindspore/core/load_mindir/load_model.cc b/mindspore/core/load_mindir/load_model.cc
index 1b457e5c08..2d5ca68e6f 100644
--- a/mindspore/core/load_mindir/load_model.cc
+++ b/mindspore/core/load_mindir/load_model.cc
@@ -127,7 +127,7 @@ std::shared_ptr<FuncGraph> LoadMindIR(const std::string &file_name, bool is_lite
   mind_ir::ModelProto origin_model;
 
   if (!input_graph || !origin_model.ParseFromIstream(&input_graph)) {
-    MS_LOG(ERROR) << "Load MindIR file failed.";
+    MS_LOG(ERROR) << "Load MindIR file failed, please check the correctness of the file.";
     return nullptr;
   }
 
@@ -143,7 +143,7 @@ std::shared_ptr<FuncGraph> LoadMindIR(const std::string &file_name, bool is_lite
       string path = abs_path;
       get_all_files(path, &files);
     } else {
-      MS_LOG(ERROR) << "MindIR graph has not variable path, load failed";
+      MS_LOG(ERROR) << "Load graph's variable folder failed, please check the correctness of variable folder.";
       return nullptr;
     }
 
@@ -153,7 +153,7 @@ std::shared_ptr<FuncGraph> LoadMindIR(const std::string &file_name, bool is_lite
       std::fstream input_param(files[file_index], std::ios::in | std::ios::binary);
       mind_ir::GraphProto param_graph;
       if (!input_param || !param_graph.ParseFromIstream(&input_param)) {
-        MS_LOG(ERROR) << "Load param proto file failed.";
+        MS_LOG(ERROR) << "Load variable file failed, please check the correctness of mindir's variable file.";
         return nullptr;
       }
 
diff --git a/mindspore/train/serialization.py b/mindspore/train/serialization.py
index c34bbe332c..3f25e60e12 100644
--- a/mindspore/train/serialization.py
+++ b/mindspore/train/serialization.py
@@ -721,7 +721,7 @@ def _save_mindir(net, file_name, *inputs):
             if data_size > TOTAL_SAVE:
                 data_file_name = data_path + "/" + "data_" + str(index)
                 with open(data_file_name, "ab") as f:
-                    os.chmod(file_name, stat.S_IRUSR | stat.S_IWUSR)
+                    os.chmod(data_file_name, stat.S_IRUSR | stat.S_IWUSR)
                     f.write(graphproto.SerializeToString())
                 index += 1
                 data_size = 0
@@ -730,7 +730,7 @@ def _save_mindir(net, file_name, *inputs):
         if graphproto.parameter:
             data_file_name = data_path + "/" + "data_" + str(index)
             with open(data_file_name, "ab") as f:
-                os.chmod(file_name, stat.S_IRUSR | stat.S_IWUSR)
+                os.chmod(data_file_name, stat.S_IRUSR | stat.S_IWUSR)
                 f.write(graphproto.SerializeToString())
 
         # save graph