diff --git a/paddle/fluid/pybind/eager.cc b/paddle/fluid/pybind/eager.cc
index c27ad8289611fdf8facff900ca4f518f6b416ff7..a732ed0c1ec1438305bcaec4092185c38b58272b 100644
--- a/paddle/fluid/pybind/eager.cc
+++ b/paddle/fluid/pybind/eager.cc
@@ -667,15 +667,12 @@ int TensorInit(PyObject* self, PyObject* args, PyObject* kwargs) {
           AutoInitTensorByPyArray(
               py_tensor_ptr, kws_map, args, flag_kwargs, args_num);
           return 0;
-        } else if (PyObject_IsInstance(
-                       kw_value, reinterpret_cast<PyObject*>(p_tensor_type))) {
+        } else if (PyObject_TypeCheck(kw_value, p_tensor_type)) {
           VLOG(6) << "Calling case5's or case6's initializer";
           AutoInitTensorByTensor(
               py_tensor_ptr, kws_map, args, flag_kwargs, args_num);
           return 0;
-        } else if (PyObject_IsInstance(kw_value,
-                                       reinterpret_cast<PyObject*>(
-                                           g_framework_tensor_pytype))) {
+        } else if (PyObject_TypeCheck(kw_value, g_framework_tensor_pytype)) {
           VLOG(6) << "Calling case7's initializer.";
           AutoInitTensorByTensor(py_tensor_ptr,
                                  kws_map,
@@ -693,8 +690,7 @@ int TensorInit(PyObject* self, PyObject* args, PyObject* kwargs) {
               "right way."));
         }
       } else if (kw_dtype != NULL &&
-                 PyObject_IsInstance(
-                     kw_dtype, reinterpret_cast<PyObject*>(g_vartype_pytype))) {
+                 PyObject_TypeCheck(kw_dtype, g_vartype_pytype)) {
         VLOG(6) << "Calling case2's initializer";
 
         PADDLE_ENFORCE_NOT_NULL(
@@ -770,15 +766,12 @@ int TensorInit(PyObject* self, PyObject* args, PyObject* kwargs) {
       AutoInitTensorByPyArray(
           py_tensor_ptr, kws_map, args, flag_kwargs, args_num);
       return 0;
-    } else if (PyObject_IsInstance(
-                   arg0_ptr, reinterpret_cast<PyObject*>(p_tensor_type))) {
+    } else if (PyObject_TypeCheck(arg0_ptr, p_tensor_type)) {
       VLOG(6) << "Calling case5's or case6's initializer.";
       AutoInitTensorByTensor(
           py_tensor_ptr, kws_map, args, flag_kwargs, args_num);
       return 0;
-    } else if (PyObject_IsInstance(
-                   arg0_ptr,
-                   reinterpret_cast<PyObject*>(g_framework_tensor_pytype))) {
+    } else if (PyObject_TypeCheck(arg0_ptr, g_framework_tensor_pytype)) {
       VLOG(6) << "Calling case7's initializer.";
       AutoInitTensorByTensor(py_tensor_ptr,
                              kws_map,
@@ -816,8 +809,7 @@ int TensorInit(PyObject* self, PyObject* args, PyObject* kwargs) {
   } else if (args_num == (Py_ssize_t)5) {
     if (!flag_kwargs) {
       PyObject* arg0_ptr = PyTuple_GET_ITEM(args, 0);
-      if (PyObject_IsInstance(arg0_ptr,
-                              reinterpret_cast<PyObject*>(g_vartype_pytype))) {
+      if (PyObject_TypeCheck(arg0_ptr, g_vartype_pytype)) {
         VLOG(6) << "Calling case2's initializer.";
         paddle::framework::proto::VarType::Type dtype =
             CastPyArg2ProtoType(PyTuple_GET_ITEM(args, 0), 0);
@@ -1007,9 +999,7 @@ int StringTensorInit(PyObject* self, PyObject* args, PyObject* kwargs) {
           AutoInitStringTensorByPyArray(
               py_tensor_ptr, kws_map, args, flag_kwargs, args_num);
           return 0;
-        } else if (PyObject_IsInstance(
-                       kw_value,
-                       reinterpret_cast<PyObject*>(p_string_tensor_type))) {
+        } else if (PyObject_TypeCheck(kw_value, p_string_tensor_type)) {
           VLOG(6) << "Calling case5's or case6's string initializer";
           AutoInitStringTensorByStringTensor(
               py_tensor_ptr, kws_map, args, flag_kwargs, args_num);
@@ -1057,9 +1047,7 @@ int StringTensorInit(PyObject* self, PyObject* args, PyObject* kwargs) {
       AutoInitStringTensorByPyArray(
           py_tensor_ptr, kws_map, args, flag_kwargs, args_num);
       return 0;
-    } else if (PyObject_IsInstance(
-                   arg0_ptr,
-                   reinterpret_cast<PyObject*>(p_string_tensor_type))) {
+    } else if (PyObject_TypeCheck(arg0_ptr, p_string_tensor_type)) {
       VLOG(6) << "Calling case5's or case6's string initializer.";
       AutoInitStringTensorByStringTensor(
           py_tensor_ptr, kws_map, args, flag_kwargs, args_num);
@@ -1076,8 +1064,7 @@ int StringTensorInit(PyObject* self, PyObject* args, PyObject* kwargs) {
     // 2 position args
     if (!flag_kwargs) {
       PyObject* arg0_ptr = PyTuple_GET_ITEM(args, 0);
-      if (PyObject_IsInstance(
-              arg0_ptr, reinterpret_cast<PyObject*>(p_string_tensor_type))) {
+      if (PyObject_TypeCheck(arg0_ptr, p_string_tensor_type)) {
         VLOG(6) << "Calling case6's string initializer.";
         AutoInitStringTensorByStringTensor(
             py_tensor_ptr, kws_map, args, flag_kwargs, args_num);
diff --git a/paddle/fluid/pybind/eager_method.cc b/paddle/fluid/pybind/eager_method.cc
index 1d61c63c66df6a5064773471d8ab2c6a11214635..78cb53392f5fa098d922b2b77bbb734a6cc0047f 100644
--- a/paddle/fluid/pybind/eager_method.cc
+++ b/paddle/fluid/pybind/eager_method.cc
@@ -76,7 +76,7 @@ extern void InitTensorWithNumpyValue(TensorObject* self,
 extern PyTypeObject* p_tensor_type;
 
 Py_ssize_t GetSliceIndexFromPyObject(PyObject* obj) {
-  if (PyObject_IsInstance(obj, reinterpret_cast<PyObject*>(p_tensor_type))) {
+  if (PyObject_TypeCheck(obj, p_tensor_type)) {
     VLOG(6) << "Call GetSliceIndexFromTensor in Eager";
     paddle::Tensor tensor = CastPyArg2Tensor(obj, 0);
     PADDLE_ENFORCE_EQ(
diff --git a/paddle/fluid/pybind/eager_utils.cc b/paddle/fluid/pybind/eager_utils.cc
index 3f49622bd049110f03d6c87586f31ee59080c0ce..dd5a06757c3e453a9222788752506d21f8d11515 100644
--- a/paddle/fluid/pybind/eager_utils.cc
+++ b/paddle/fluid/pybind/eager_utils.cc
@@ -235,8 +235,7 @@ void SetPythonStack() {
 
 std::shared_ptr<jit::Function> CastPyArg2JitFunction(PyObject* obj,
                                                      ssize_t arg_pos) {
-  if (PyObject_IsInstance(obj,
-                          reinterpret_cast<PyObject*>(g_jit_function_pytype))) {
+  if (PyObject_TypeCheck(obj, g_jit_function_pytype)) {
     return ::pybind11::handle(obj).cast<std::shared_ptr<jit::Function>>();
   } else {
     PADDLE_THROW(platform::errors::InvalidArgument(
@@ -255,8 +254,7 @@ std::vector<paddle::Tensor> CastPyArg2VectorOfTensor(PyObject* obj,
     PyObject* item = nullptr;
     for (Py_ssize_t i = 0; i < len; i++) {
       item = PyList_GetItem(obj, i);
-      if (PyObject_IsInstance(item,
-                              reinterpret_cast<PyObject*>(p_tensor_type))) {
+      if (PyObject_TypeCheck(item, p_tensor_type)) {
         result.emplace_back(reinterpret_cast<TensorObject*>(item)->tensor);
       } else if (item == Py_None) {
         // emplace empty Tensor for None
@@ -275,8 +273,7 @@ std::vector<paddle::Tensor> CastPyArg2VectorOfTensor(PyObject* obj,
     PyObject* item = nullptr;
     for (Py_ssize_t i = 0; i < len; i++) {
       item = PyTuple_GetItem(obj, i);
-      if (PyObject_IsInstance(item,
-                              reinterpret_cast<PyObject*>(p_tensor_type))) {
+      if (PyObject_TypeCheck(item, p_tensor_type)) {
         result.emplace_back(reinterpret_cast<TensorObject*>(item)->tensor);
       } else if (item == Py_None) {
         // emplace empty Tensor for None
@@ -292,8 +289,7 @@ std::vector<paddle::Tensor> CastPyArg2VectorOfTensor(PyObject* obj,
     }
   } else if (obj == Py_None) {
     return {};
-  } else if (PyObject_IsInstance(obj,
-                                 reinterpret_cast<PyObject*>(p_tensor_type))) {
+  } else if (PyObject_TypeCheck(obj, p_tensor_type)) {
     return {reinterpret_cast<TensorObject*>(obj)->tensor};
   } else {
     PADDLE_THROW(platform::errors::InvalidArgument(
@@ -519,22 +515,17 @@ std::vector<std::vector<size_t>> CastPyArg2VectorOfVectorOfSize_t(
 
 platform::Place CastPyArg2Place(PyObject* obj, ssize_t arg_pos) {
   platform::Place place;
-  if (PyObject_IsInstance(obj, reinterpret_cast<PyObject*>(g_place_pytype))) {
+  if (PyObject_TypeCheck(obj, g_place_pytype)) {
     place = ::pybind11::handle(obj).cast<platform::Place>();
-  } else if (PyObject_IsInstance(
-                 obj, reinterpret_cast<PyObject*>(g_cudaplace_pytype))) {
+  } else if (PyObject_TypeCheck(obj, g_cudaplace_pytype)) {
     place = ::pybind11::handle(obj).cast<platform::CUDAPlace>();
-  } else if (PyObject_IsInstance(
-                 obj, reinterpret_cast<PyObject*>(g_cpuplace_pytype))) {
+  } else if (PyObject_TypeCheck(obj, g_cpuplace_pytype)) {
     place = ::pybind11::handle(obj).cast<platform::CPUPlace>();
-  } else if (PyObject_IsInstance(
-                 obj, reinterpret_cast<PyObject*>(g_xpuplace_pytype))) {
+  } else if (PyObject_TypeCheck(obj, g_xpuplace_pytype)) {
     place = ::pybind11::handle(obj).cast<platform::XPUPlace>();
-  } else if (PyObject_IsInstance(
-                 obj, reinterpret_cast<PyObject*>(g_cudapinnedplace_pytype))) {
+  } else if (PyObject_TypeCheck(obj, g_cudapinnedplace_pytype)) {
     place = ::pybind11::handle(obj).cast<platform::CUDAPinnedPlace>();
-  } else if (PyObject_IsInstance(
-                 obj, reinterpret_cast<PyObject*>(g_customplace_pytype))) {
+  } else if (PyObject_TypeCheck(obj, g_customplace_pytype)) {
     place = ::pybind11::handle(obj).cast<platform::CustomPlace>();
   } else {
     PADDLE_THROW(platform::errors::InvalidArgument(
@@ -550,8 +541,7 @@ platform::Place CastPyArg2Place(PyObject* obj, ssize_t arg_pos) {
 }
 
 phi::DenseTensor CastPyArg2FrameworkTensor(PyObject* obj, ssize_t arg_pos) {
-  if (PyObject_IsInstance(
-          obj, reinterpret_cast<PyObject*>(g_framework_tensor_pytype))) {
+  if (PyObject_TypeCheck(obj, g_framework_tensor_pytype)) {
     return ::pybind11::handle(obj).cast<phi::DenseTensor>();
   } else {
     PADDLE_THROW(platform::errors::InvalidArgument(
@@ -570,8 +560,7 @@ std::vector<phi::DenseTensor> CastPyArg2VectorOfTensorBase(PyObject* obj,
     PyObject* item = nullptr;
     for (Py_ssize_t i = 0; i < len; i++) {
       item = PyList_GetItem(obj, i);
-      if (PyObject_IsInstance(
-              item, reinterpret_cast<PyObject*>(g_framework_tensor_pytype))) {
+      if (PyObject_TypeCheck(item, g_framework_tensor_pytype)) {
         result.emplace_back(::pybind11::handle(item).cast<phi::DenseTensor>());
       } else {
         PADDLE_THROW(platform::errors::InvalidArgument(
@@ -587,8 +576,7 @@ std::vector<phi::DenseTensor> CastPyArg2VectorOfTensorBase(PyObject* obj,
     PyObject* item = nullptr;
     for (Py_ssize_t i = 0; i < len; i++) {
       item = PyTuple_GetItem(obj, i);
-      if (PyObject_IsInstance(
-              item, reinterpret_cast<PyObject*>(g_framework_tensor_pytype))) {
+      if (PyObject_TypeCheck(item, g_framework_tensor_pytype)) {
         result.emplace_back(::pybind11::handle(item).cast<phi::DenseTensor>());
       } else {
         PADDLE_THROW(platform::errors::InvalidArgument(
@@ -599,17 +587,14 @@ std::vector<phi::DenseTensor> CastPyArg2VectorOfTensorBase(PyObject* obj,
             i));
       }
     }
-  } else if (PyObject_IsInstance(obj,
-                                 reinterpret_cast<PyObject*>(
-                                     g_framework_lodtensorarray_pytype))) {
+  } else if (PyObject_TypeCheck(obj, g_framework_lodtensorarray_pytype)) {
     for (auto& tensor :
          (::pybind11::handle(obj).cast<framework::LoDTensorArray>())) {
       result.emplace_back(tensor);
     }
   } else if (obj == Py_None) {
     return {};
-  } else if (PyObject_IsInstance(
-                 obj, reinterpret_cast<PyObject*>(g_framework_tensor_pytype))) {
+  } else if (PyObject_TypeCheck(obj, g_framework_tensor_pytype)) {
     return {::pybind11::handle(obj).cast<phi::DenseTensor>()};
   } else {
     PADDLE_THROW(platform::errors::InvalidArgument(
@@ -624,7 +609,7 @@ std::vector<phi::DenseTensor> CastPyArg2VectorOfTensorBase(PyObject* obj,
 paddle::framework::proto::VarType::Type CastPyArg2ProtoType(PyObject* obj,
                                                             ssize_t arg_pos) {
   paddle::framework::proto::VarType::Type dtype;
-  if (PyObject_IsInstance(obj, reinterpret_cast<PyObject*>(g_vartype_pytype))) {
+  if (PyObject_TypeCheck(obj, g_vartype_pytype)) {
     dtype =
         ::pybind11::handle(obj).cast<paddle::framework::proto::VarType::Type>();
   } else {
@@ -973,7 +958,7 @@ paddle::optional<paddle::Tensor> GetOptionalTensorFromArgs(
     return paddle::none;
   }
 
-  if (PyObject_IsInstance(obj, reinterpret_cast<PyObject*>(p_tensor_type))) {
+  if (PyObject_TypeCheck(obj, p_tensor_type)) {
     return paddle::make_optional<paddle::Tensor>(
         reinterpret_cast<TensorObject*>(obj)->tensor);
   } else {
@@ -1007,10 +992,9 @@ static paddle::Tensor& GetTensorFromPyObject(const std::string& op_type,
     return emptytensor;
   }
 
-  if (PyObject_IsInstance(obj, reinterpret_cast<PyObject*>(p_tensor_type))) {
+  if (PyObject_TypeCheck(obj, p_tensor_type)) {
     return reinterpret_cast<TensorObject*>(obj)->tensor;
-  } else if (PyObject_IsInstance(
-                 obj, reinterpret_cast<PyObject*>(p_string_tensor_type))) {
+  } else if (PyObject_TypeCheck(obj, p_string_tensor_type)) {
     return reinterpret_cast<TensorObject*>(obj)->tensor;
   } else {
     PADDLE_THROW(platform::errors::InvalidArgument(
@@ -1187,7 +1171,7 @@ paddle::Tensor* GetTensorPtrFromArgs(const std::string& op_type,
     return &emptytensor;
   }
 
-  if (PyObject_IsInstance(obj, reinterpret_cast<PyObject*>(p_tensor_type))) {
+  if (PyObject_TypeCheck(obj, p_tensor_type)) {
     return &(reinterpret_cast<TensorObject*>(obj)->tensor);
   } else {
     PADDLE_THROW(platform::errors::InvalidArgument(
@@ -1305,8 +1289,7 @@ std::vector<paddle::Tensor> GetTensorListFromPyObject(PyObject* obj,
     PyObject* item = nullptr;
     for (Py_ssize_t i = 0; i < len; i++) {
       item = PyList_GetItem(obj, i);
-      if (PyObject_IsInstance(item,
-                              reinterpret_cast<PyObject*>(p_tensor_type))) {
+      if (PyObject_TypeCheck(item, p_tensor_type)) {
         result.emplace_back(reinterpret_cast<TensorObject*>(item)->tensor);
       } else if (allow_none && (item == Py_None)) {
         VLOG(4) << "Got None in Tensor list: " << i;
@@ -1324,8 +1307,7 @@ std::vector<paddle::Tensor> GetTensorListFromPyObject(PyObject* obj,
     PyObject* item = nullptr;
     for (Py_ssize_t i = 0; i < len; i++) {
       item = PyTuple_GetItem(obj, i);
-      if (PyObject_IsInstance(item,
-                              reinterpret_cast<PyObject*>(p_tensor_type))) {
+      if (PyObject_TypeCheck(item, p_tensor_type)) {
         result.emplace_back(reinterpret_cast<TensorObject*>(item)->tensor);
       } else if (allow_none && (item == Py_None)) {
         VLOG(4) << "Got None in Tensor list: " << i;
@@ -1548,8 +1530,7 @@ paddle::experimental::IntArray CastPyArg2IntArray(PyObject* obj,
 }
 
 paddle::framework::Scope* CastPyArg2ScopePtr(PyObject* obj) {
-  if (PyObject_IsInstance(
-          obj, reinterpret_cast<PyObject*>(g_framework_scope_pytype))) {
+  if (PyObject_TypeCheck(obj, g_framework_scope_pytype)) {
     return ::pybind11::handle(obj).cast<paddle::framework::Scope*>();
   } else {
     PADDLE_THROW(platform::errors::InvalidArgument(
diff --git a/paddle/fluid/pybind/op_function_common.cc b/paddle/fluid/pybind/op_function_common.cc
index 86dea0d145afea8d240e8177977f92842ea05146..b4b96c02bb2271009a668d4232a62d9039e8a5b1 100644
--- a/paddle/fluid/pybind/op_function_common.cc
+++ b/paddle/fluid/pybind/op_function_common.cc
@@ -70,10 +70,10 @@ bool PyObject_CheckBool(PyObject** obj) { return PyBool_Check(*obj); }
 
 bool PyObject_CheckLongOrToLong(PyObject** obj) {
   if ((PyLong_Check(*obj) && !PyBool_Check(*obj)) ||
-      PyObject_IsInstance(*obj, (PyObject*)g_vartype_pytype) ||  // NOLINT
-      PyObject_IsInstance(*obj, (PyObject*)g_varbase_pytype) ||  // NOLINT
-      (PyObject_IsInstance(*obj, (PyObject*)p_tensor_type) &&    // NOLINT
-       (((TensorObject*)(*obj))->tensor.numel() == 1))) {        // NOLINT
+      PyObject_TypeCheck(*obj, g_vartype_pytype) ||        // NOLINT
+      PyObject_TypeCheck(*obj, g_varbase_pytype) ||        // NOLINT
+      (PyObject_TypeCheck(*obj, p_tensor_type) &&          // NOLINT
+       (((TensorObject*)(*obj))->tensor.numel() == 1))) {  // NOLINT
     return true;
   }
 
@@ -92,9 +92,9 @@ bool PyObject_CheckLongOrToLong(PyObject** obj) {
 bool PyObject_CheckFloatOrToFloat(PyObject** obj) {
   // sometimes users provide PyLong or numpy.int64 but attr is float
   if (PyFloat_Check(*obj) || PyLong_Check(*obj) ||
-      PyObject_IsInstance(*obj, (PyObject*)g_varbase_pytype) ||  // NOLINT
-      (PyObject_IsInstance(*obj, (PyObject*)p_tensor_type) &&    // NOLINT
-       (((TensorObject*)(*obj))->tensor.numel() == 1))) {        // NOLINT
+      PyObject_TypeCheck(*obj, g_varbase_pytype) ||        // NOLINT
+      (PyObject_TypeCheck(*obj, p_tensor_type) &&          // NOLINT
+       (((TensorObject*)(*obj))->tensor.numel() == 1))) {  // NOLINT
     return true;
   }
   if (std::string(((PyTypeObject*)(*obj)->ob_type)->tp_name)  // NOLINT
@@ -110,9 +110,9 @@ bool PyObject_CheckFloatOrToFloat(PyObject** obj) {
 
 bool PyObject_CheckComplexOrToComplex(PyObject** obj) {
   if (PyComplex_Check(*obj) || PyLong_Check(*obj) || PyFloat_Check(*obj) ||
-      PyObject_IsInstance(*obj, (PyObject*)g_vartype_pytype) ||  // NOLINT
-      PyObject_IsInstance(*obj, (PyObject*)g_varbase_pytype) ||  // NOLINT
-      PyObject_IsInstance(*obj, (PyObject*)p_tensor_type)) {     // NOLINT
+      PyObject_TypeCheck(*obj, g_vartype_pytype) ||  // NOLINT
+      PyObject_TypeCheck(*obj, g_varbase_pytype) ||  // NOLINT
+      PyObject_TypeCheck(*obj, p_tensor_type)) {     // NOLINT
     return true;
   }
   // consider numpy cfloat & numpy cdouble?
@@ -821,8 +821,7 @@ void CastPyArg2AttrBlock(PyObject* obj,
   ::pybind11::detail::instance* inst =
       (::pybind11::detail::instance*)obj;  // NOLINT
 
-  if (!PyObject_IsInstance((PyObject*)inst,                   // NOLINT
-                           (PyObject*)g_blockdesc_pytype)) {  // NOLINT
+  if (!PyObject_TypeCheck((PyObject*)inst, g_blockdesc_pytype)) {  // NOLINT
     PADDLE_THROW(platform::errors::InvalidArgument(
         "%s(): argument (position %d) must be "
         "BlockDesc, but got %s",
@@ -951,8 +950,7 @@ std::shared_ptr<imperative::VarBase> GetVarBaseFromArgs(
     return nullptr;
   }
 
-  if (!PyObject_IsInstance((PyObject*)inst,                 // NOLINT
-                           (PyObject*)g_varbase_pytype)) {  // NOLINT
+  if (!PyObject_TypeCheck((PyObject*)inst, g_varbase_pytype)) {  // NOLINT
     PADDLE_THROW(platform::errors::InvalidArgument(
         "%s(): argument '%s' (position %d) must be Tensor, but got "
         "%s",
@@ -1002,8 +1000,7 @@ std::vector<std::shared_ptr<imperative::VarBase>> GetVarBaseListFromArgs(
     ::pybind11::detail::instance* item = nullptr;
     for (Py_ssize_t i = 0; i < len; i++) {
       item = (::pybind11::detail::instance*)PyList_GetItem(list, i);
-      if (!PyObject_IsInstance((PyObject*)item,                 // NOLINT
-                               (PyObject*)g_varbase_pytype)) {  // NOLINT
+      if (!PyObject_TypeCheck((PyObject*)item, g_varbase_pytype)) {  // NOLINT
         PADDLE_THROW(platform::errors::InvalidArgument(
             "%s(): argument '%s' (position %d) must be list of Tensors, but "
             "got list of "
@@ -1032,8 +1029,7 @@ std::vector<std::shared_ptr<imperative::VarBase>> GetVarBaseListFromArgs(
     ::pybind11::detail::instance* item = nullptr;
     for (Py_ssize_t i = 0; i < len; i++) {
       item = (::pybind11::detail::instance*)PyTuple_GetItem(list, i);  // NOLINT
-      if (!PyObject_IsInstance((PyObject*)item,                        // NOLINT
-                               (PyObject*)g_varbase_pytype)) {         // NOLINT
+      if (!PyObject_TypeCheck((PyObject*)item, g_varbase_pytype)) {    // NOLINT
         PADDLE_THROW(platform::errors::InvalidArgument(
             "%s(): argument '%s' (position %d) must be list of Tensors, but "
             "got list of "
diff --git a/paddle/utils/pybind.cc b/paddle/utils/pybind.cc
index 24f4c2bd22a8d82d1ad596219e90d4411891f8ce..b120414fd96cfd334becbb4c13e51b8ecf59c38a 100644
--- a/paddle/utils/pybind.cc
+++ b/paddle/utils/pybind.cc
@@ -23,18 +23,18 @@ namespace pybind {
 
 PyTypeObject* p_tensor_type = nullptr;
 PyTypeObject* p_string_tensor_type = nullptr;
-
+// PyTypeObject* PyFloat_Type;
+PyTypeObject* PyLong_Type;
 bool PyCheckTensor(PyObject* obj) {
   if (!p_tensor_type) {
     return false;
   }
-  return PyObject_IsInstance(obj, reinterpret_cast<PyObject*>(p_tensor_type));
+  return PyObject_TypeCheck(obj, p_tensor_type);
 }
 
 paddle::Tensor CastPyArg2Tensor(PyObject* obj, Py_ssize_t arg_pos) {
-  if (PyObject_IsInstance(obj, reinterpret_cast<PyObject*>(p_tensor_type)) ||
-      PyObject_IsInstance(obj,
-                          reinterpret_cast<PyObject*>(p_string_tensor_type))) {
+  if (PyObject_TypeCheck(obj, p_tensor_type) ||
+      PyObject_TypeCheck(obj, p_string_tensor_type)) {
     return reinterpret_cast<TensorObject*>(obj)->tensor;
   } else {
     PADDLE_THROW(phi::errors::InvalidArgument(