diff --git a/lite/api/cxx_api.cc b/lite/api/cxx_api.cc
index 9c0e8e1c343b8eb1705e871aa652e3254474391d..f6f7ec75e65ff54e3f3642822e51057d3522ae3a 100644
--- a/lite/api/cxx_api.cc
+++ b/lite/api/cxx_api.cc
@@ -43,6 +43,7 @@ void Predictor::SaveModel(const std::string &dir,
       LOG(FATAL) << "Unknown model type";
   }
   if (record_info) {
+    MkDirRecur(dir);
     SaveOpKernelInfo(dir);
   }
 }
diff --git a/lite/core/mir/subgraph/subgraph_pass_test.cc b/lite/core/mir/subgraph/subgraph_pass_test.cc
index 252517939990d8ce48083badb342c22fae1459c6..247795a86ce2cbe962b161311f7845622ee3983e 100644
--- a/lite/core/mir/subgraph/subgraph_pass_test.cc
+++ b/lite/core/mir/subgraph/subgraph_pass_test.cc
@@ -203,7 +203,7 @@ TEST(Subgraph, generate_model_and_check_precision) {
                                  valid_places,
                                  input_tensor_shape,
                                  input_tensor_type,
-                                 FLAGS_optimized_model_dir + "/ref_opt_model");
+                                 FLAGS_optimized_model_dir + "_ref_opt_model");
 // Generate and run optimized model on NPU/XPU as the target predictor
 #ifdef LITE_WITH_NPU
   valid_places.push_back(lite_api::Place{TARGET(kNPU), PRECISION(kFloat)});
@@ -217,7 +217,7 @@ TEST(Subgraph, generate_model_and_check_precision) {
                                  valid_places,
                                  input_tensor_shape,
                                  input_tensor_type,
-                                 FLAGS_optimized_model_dir + "/tar_opt_model");
+                                 FLAGS_optimized_model_dir + "_tar_opt_model");
   // Check the difference of the output tensors between reference predictor and
   // target predictor
   CheckOutputTensors(tar_predictor, ref_predictor, output_tensor_type);
diff --git a/lite/model_parser/model_parser.cc b/lite/model_parser/model_parser.cc
index 6eaf030928bd9edccf73626e4d085bd24e396081..08e6a303094dc42278bfcb24c54f16bd3819d5c1 100644
--- a/lite/model_parser/model_parser.cc
+++ b/lite/model_parser/model_parser.cc
@@ -544,7 +544,6 @@ void SaveModelNaive(const std::string &model_dir,
                     const Scope &exec_scope,
                     const cpp::ProgramDesc &cpp_prog,
                     bool combined) {
-  MkDirRecur(model_dir);
   // Save program
   const std::string prog_path = model_dir + ".nb";
   naive_buffer::BinaryTable table;
@@ -586,7 +585,8 @@ void SaveModelNaive(const std::string &model_dir,
   // Save Params
   SaveCombinedParamsNaive(prog_path, exec_scope, cpp_prog);
 
-  LOG(INFO) << "Save naive buffer model in '" << model_dir << "' successfully";
+  LOG(INFO) << "Save naive buffer model in '" << model_dir
+            << ".nb' successfully";
 }
 #endif