diff --git a/mindspore/ccsrc/pipeline/jit/init.cc b/mindspore/ccsrc/pipeline/jit/init.cc
index 65adebb6e2..5f98341c79 100644
--- a/mindspore/ccsrc/pipeline/jit/init.cc
+++ b/mindspore/ccsrc/pipeline/jit/init.cc
@@ -81,9 +81,7 @@ PYBIND11_MODULE(_c_expression, m) {
     .def("has_compiled", &ExecutorPy::HasCompiled, py::arg("phase") = py::str(""), "get if cell compiled.")
     .def("run_init_graph", &ExecutorPy::RunInitGraph, "Run init Graph.");
 
-  (void)py::class_<EnvInstance, std::shared_ptr<EnvInstance>>(m, "EnvInstance_")
-    .def_readonly(mindspore::PYTHON_ENVINSTANCE_FLAG, &mindspore::EnvInstance::parse_info_)
-    .def(py::init());
+  (void)py::class_<EnvInstance, std::shared_ptr<EnvInstance>>(m, "EnvInstance_").def(py::init());
 
   (void)m.def("generate_key", &mindspore::pipeline::GenerateKey, "Generate the function graph key.");
   (void)m.def("real_run_op", &mindspore::pynative::RunOp, "Run op pynatively.");
diff --git a/mindspore/ccsrc/pipeline/jit/parse/data_converter.cc b/mindspore/ccsrc/pipeline/jit/parse/data_converter.cc
index eb8444c485..ae68bf97c7 100644
--- a/mindspore/ccsrc/pipeline/jit/parse/data_converter.cc
+++ b/mindspore/ccsrc/pipeline/jit/parse/data_converter.cc
@@ -361,15 +361,15 @@ bool ConvertData(const py::object &obj, ValuePtr *const data, bool use_signature
     ConvertDataClass(obj, &converted);
   } else if (py::hasattr(obj, PYTHON_PRIMITIVE_FLAG)) {
     ret = ConvertPrimitive(obj, &converted, use_signature);
-  } else if (py::hasattr(obj, PYTHON_METAFUNCGRAPH_FLAG)) {
+  } else if (py::isinstance<MetaFuncGraph>(obj)) {
     ret = ConvertMetaFuncGraph(obj, &converted, use_signature);
-  } else if (py::hasattr(obj, PYTHON_DTYPE_FLAG)) {
+  } else if (py::isinstance<Type>(obj)) {
     ret = ConvertDataType(obj, &converted);
-  } else if (py::hasattr(obj, PYTHON_TENSOR_FLAG)) {
+  } else if (py::isinstance<Tensor>(obj)) {
     ret = ConvertTensor(obj, &converted);
-  } else if (py::hasattr(obj, PYTHON_META_TENSOR_FLAG)) {
+  } else if (py::isinstance<MetaTensor>(obj)) {
     ret = ConvertMetaTensor(obj, &converted);
-  } else if (py::hasattr(obj, PYTHON_ENVINSTANCE_FLAG)) {
+  } else if (py::isinstance<EnvInstance>(obj)) {
     std::shared_ptr<EnvInstance> env = obj.cast<std::shared_ptr<EnvInstance>>();
     converted = env;
   } else if (py::hasattr(obj, PYTHON_CLASS_MEMBER_NAMESPACE)) {
diff --git a/mindspore/ccsrc/pipeline/jit/pipeline.cc b/mindspore/ccsrc/pipeline/jit/pipeline.cc
index 76e1ad53a5..b1c3f2db03 100644
--- a/mindspore/ccsrc/pipeline/jit/pipeline.cc
+++ b/mindspore/ccsrc/pipeline/jit/pipeline.cc
@@ -125,7 +125,7 @@ py::bool_ VerifyInputSignature(const py::list input_signature, const py::tuple i
 
   size_t count = 0;
   for (auto arg_obj : inputs) {
-    if (py::hasattr(arg_obj, PYTHON_TENSOR_FLAG)) {
+    if (py::isinstance<Tensor>(arg_obj)) {
       MS_LOG(DEBUG) << "Verify Tensor";
       std::shared_ptr<Tensor> m_tensor = arg_obj.cast<std::shared_ptr<Tensor>>();
       if (m_tensor == nullptr) {
diff --git a/mindspore/ccsrc/pipeline/jit/pipeline_ge.cc b/mindspore/ccsrc/pipeline/jit/pipeline_ge.cc
index e08af4f2dc..dade1ada38 100644
--- a/mindspore/ccsrc/pipeline/jit/pipeline_ge.cc
+++ b/mindspore/ccsrc/pipeline/jit/pipeline_ge.cc
@@ -161,7 +161,7 @@ void ConvertObjectToTensors(const py::dict &dict, TensorOrderMap *const tensors)
       // convert int to tensor with shape([1])
       tensor = std::make_shared<Tensor>(kNumberTypeInt32, std::vector<int>({1}));
       *(static_cast<float *>(tensor->data_c())) = py::cast<float>(item.second.attr("default_input"));
-    } else if (py::hasattr(item.second.attr("default_input"), PYTHON_TENSOR_FLAG)) {
+    } else if (py::isinstance<Tensor>(item.second.attr("default_input"))) {
       // cast tensor
       tensor = py::cast<std::shared_ptr<Tensor>>(item.second.attr("default_input"));
     }
diff --git a/mindspore/ccsrc/pybind_api/export_flags.cc b/mindspore/ccsrc/pybind_api/export_flags.cc
index bbec26ee99..a9953debdc 100644
--- a/mindspore/ccsrc/pybind_api/export_flags.cc
+++ b/mindspore/ccsrc/pybind_api/export_flags.cc
@@ -18,11 +18,6 @@
 namespace mindspore {
 
 const char PYTHON_PRIMITIVE_FLAG[] = "__primitive_flag__";
-const char PYTHON_METAFUNCGRAPH_FLAG[] = "__metafuncgraph_flag__";
-const char PYTHON_TENSOR_FLAG[] = "__tensor_flag__";
-const char PYTHON_META_TENSOR_FLAG[] = "__meta_tensor_flag__";
-const char PYTHON_ENVINSTANCE_FLAG[] = "__envinstance_flag__";
-const char PYTHON_DTYPE_FLAG[] = "__dtype_flag__";
 const char PYTHON_CELL_AS_LIST[] = "__cell_as_list__";
 const char PYTHON_DATACLASS_FIELDS[] = "__dataclass_fields__";
 const char PYTHON_CLASS_MEMBER_NAMESPACE[] = "__class_member_namespace__";
diff --git a/mindspore/ccsrc/pybind_api/export_flags.h b/mindspore/ccsrc/pybind_api/export_flags.h
index a927794462..eb2348d88d 100644
--- a/mindspore/ccsrc/pybind_api/export_flags.h
+++ b/mindspore/ccsrc/pybind_api/export_flags.h
@@ -20,11 +20,6 @@
 namespace mindspore {
 
 extern const char PYTHON_PRIMITIVE_FLAG[];
-extern const char PYTHON_METAFUNCGRAPH_FLAG[];
-extern const char PYTHON_TENSOR_FLAG[];
-extern const char PYTHON_META_TENSOR_FLAG[];
-extern const char PYTHON_ENVINSTANCE_FLAG[];
-extern const char PYTHON_DTYPE_FLAG[];
 extern const char PYTHON_CELL_AS_LIST[];
 extern const char PYTHON_DATACLASS_FIELDS[];
 extern const char PYTHON_CLASS_MEMBER_NAMESPACE[];
diff --git a/mindspore/ccsrc/utils/convert_utils.cc b/mindspore/ccsrc/utils/convert_utils.cc
index 140bcdcfb1..3e2b926e77 100644
--- a/mindspore/ccsrc/utils/convert_utils.cc
+++ b/mindspore/ccsrc/utils/convert_utils.cc
@@ -367,8 +367,7 @@ py::object VectorRefToPyData(const VectorRef &value_list) {
 }
 
 AbstractBasePtr PyListDtype2AbstractTensor(const py::object &shape_obj, const py::object &type_obj) {
-  if ((py::isinstance<py::list>(shape_obj) || py::isinstance<py::tuple>(shape_obj)) &&
-      py::hasattr(type_obj, PYTHON_DTYPE_FLAG)) {
+  if ((py::isinstance<py::list>(shape_obj) || py::isinstance<py::tuple>(shape_obj)) && py::isinstance<Type>(type_obj)) {
     auto ret_vec = shape_obj.cast<std::vector<int>>();
     auto ret_dtype = type_obj.cast<TypePtr>();
     MS_EXCEPTION_IF_NULL(ret_dtype);
diff --git a/mindspore/ccsrc/utils/symbolic.h b/mindspore/ccsrc/utils/symbolic.h
index ca68b2c877..9019000233 100644
--- a/mindspore/ccsrc/utils/symbolic.h
+++ b/mindspore/ccsrc/utils/symbolic.h
@@ -162,8 +162,6 @@ class EnvInstance : public Value {
     return Len();
   }
 
-  const bool parse_info_ = true;
-
  private:
   EnvInstanceContentsMap contents_;
 };
diff --git a/mindspore/core/ir/dtype/type.h b/mindspore/core/ir/dtype/type.h
index 063f435bd5..77b3dc5079 100644
--- a/mindspore/core/ir/dtype/type.h
+++ b/mindspore/core/ir/dtype/type.h
@@ -84,8 +84,6 @@ class Type : public Value {
   friend std::ostream &operator<<(std::ostream &os, const Type &type);
   friend std::ostream &operator<<(std::ostream &os, const TypePtr type);
 
-  const bool parse_info_ = true;
-
  private:
   TypeId meta_type_;
   bool is_generic_;
diff --git a/mindspore/core/ir/dtype_py.cc b/mindspore/core/ir/dtype_py.cc
index 7577a39f7a..db02cb3257 100644
--- a/mindspore/core/ir/dtype_py.cc
+++ b/mindspore/core/ir/dtype_py.cc
@@ -35,7 +35,6 @@ REGISTER_PYBIND_DEFINE(
       "dump_type", [](const TypePtr &t) { return t->type_id(); }, "dump type");
     (void)m_sub.def("str_to_type", &StringToType, "string to typeptr");
     (void)py::class_<Type, std::shared_ptr<Type>>(m_sub, "Type")
-      .def_readonly(PYTHON_DTYPE_FLAG, &mindspore::Type::parse_info_)
      .def("__eq__",
            [](const TypePtr &t1, const py::object &other) {
              if (!py::isinstance<Type>(other)) {
diff --git a/mindspore/core/ir/func_graph_py.cc b/mindspore/core/ir/func_graph_py.cc
index cff25b5aa1..f6bb419a10 100644
--- a/mindspore/core/ir/func_graph_py.cc
+++ b/mindspore/core/ir/func_graph_py.cc
@@ -24,7 +24,7 @@ namespace mindspore {
 REGISTER_PYBIND_DEFINE(FuncGraph, ([](const pybind11::module *m) {
                          // Define python "MetaFuncGraph_" class
                          (void)py::class_<MetaFuncGraph, std::shared_ptr<MetaFuncGraph>>(*m, "MetaFuncGraph_")
-                           .def_readonly(PYTHON_METAFUNCGRAPH_FLAG, &MetaFuncGraph::parse_info_)
+                          //  .def_readonly(PYTHON_METAFUNCGRAPH_FLAG, &MetaFuncGraph::parse_info_)
                            .def(py::init<std::string &>());
                          // Define python "FuncGraph" class
                          (void)py::class_<FuncGraph, FuncGraphPtr>(*m, "FuncGraph")
diff --git a/mindspore/core/ir/meta_func_graph.h b/mindspore/core/ir/meta_func_graph.h
index d15c08feb0..3193c33926 100644
--- a/mindspore/core/ir/meta_func_graph.h
+++ b/mindspore/core/ir/meta_func_graph.h
@@ -72,7 +72,7 @@ class MetaFuncGraph : public FuncGraphBase {
       return false;
     }
   }
-  const bool parse_info_ = true;
+  // const bool parse_info_ = true;
 
  protected:
   template <typename Derived>
diff --git a/mindspore/core/ir/meta_tensor.h b/mindspore/core/ir/meta_tensor.h
index abf877da29..22bd5ad290 100644
--- a/mindspore/core/ir/meta_tensor.h
+++ b/mindspore/core/ir/meta_tensor.h
@@ -163,7 +163,6 @@ class MetaTensor : public Value {
       return false;
     }
   }
-  const bool parse_info_ = true;
 
  protected:
   // brief Data type of the tensor.
diff --git a/mindspore/core/ir/tensor.h b/mindspore/core/ir/tensor.h
index ce319e7443..2f844b7171 100644
--- a/mindspore/core/ir/tensor.h
+++ b/mindspore/core/ir/tensor.h
@@ -224,8 +224,6 @@ class Tensor : public MetaTensor {
 
   std::string id() const { return id_; }
 
-  const bool parse_info_ = true;
-
  private:
   bool init_flag_{false};
   TensorDataPtr data_{nullptr};
diff --git a/mindspore/core/ir/tensor_py.cc b/mindspore/core/ir/tensor_py.cc
index 88c8f219bf..b5b4fc0d69 100644
--- a/mindspore/core/ir/tensor_py.cc
+++ b/mindspore/core/ir/tensor_py.cc
@@ -214,7 +214,6 @@ REGISTER_PYBIND_DEFINE(Tensor, ([](const py::module *m) {
                          // Define python MetaTensor class.
                          (void)py::class_<MetaTensor, std::shared_ptr<MetaTensor>>(*m, "MetaTensor")
                            .def(py::init<TypePtr, const std::vector<int>>(), py::arg("dtype"), py::arg("shape"))
-                           .def_readonly(PYTHON_META_TENSOR_FLAG, &MetaTensor::parse_info_)
                            .def_property_readonly("dtype", &MetaTensor::Dtype, "Get the MetaTensor's dtype.")
                            .def_property_readonly("shape", &MetaTensor::shape, "Get the MetaTensor's shape.")
                            .def(py::pickle(
@@ -268,7 +267,6 @@ REGISTER_PYBIND_DEFINE(Tensor, ([](const py::module *m) {
                                   return TensorPy::MakeTensor(py::array(input), type_ptr);
                                 }),
                                 py::arg("input"), py::arg("dtype") = nullptr)
-                           .def_readonly(PYTHON_TENSOR_FLAG, &Tensor::parse_info_)
                            .def_property("init_flag", &Tensor::is_init, &Tensor::set_init_flag)
                            .def_property_readonly("dtype", &Tensor::Dtype, R"mydelimiter(
                              Get the tensor's data type.