diff --git a/paddle/fluid/framework/ngraph_operator.cc b/paddle/fluid/framework/ngraph_operator.cc
index 61bae1aba41d7630d40585b521688fbd6c069165..1c770a2370926c6b32236537cbb265e8a9eaa468 100644
--- a/paddle/fluid/framework/ngraph_operator.cc
+++ b/paddle/fluid/framework/ngraph_operator.cc
@@ -283,7 +283,7 @@ void NgraphOperator::GetNgInputShape(std::shared_ptr<OperatorBase> op) {
   for (auto& var_name_item : op->Inputs()) {
     for (auto& var_name : var_name_item.second) {
       auto* var = scope_.FindVar(var_name);
-      if (var && VarIsTensor(*var)) {
+      if (var && var->IsType<LoDTensor>()) {
         auto* tensor_pd = GetLoDTensorOrSelectedRowsValueFromVar(*var);
         auto sp = Ddim2Shape(tensor_pd->dims());
         if (std::find(var_in_.begin(), var_in_.end(), var_name) !=
@@ -305,7 +305,7 @@ void NgraphOperator::BuildNgNode() {
   for (auto& var_name : var_out_) {
     if (var_node_map_->find(var_name) == var_node_map_->end()) {
       auto* var = scope_.FindVar(var_name);
-      if (var && VarIsTensor(*var)) {
+      if (var && var->IsType<LoDTensor>()) {
         auto* tensor_pd = GetLoDTensorOrSelectedRowsValueFromVar(*var);
         auto& ddim = tensor_pd->dims();
         auto ng_shape = Ddim2Shape(ddim);
@@ -433,7 +433,7 @@ std::shared_ptr<std::string> NgraphOperator::GetCacheKey() {
 
   for (auto& var_name : var_out_) {
     auto* var = scope_.FindVar(var_name);
-    if (var && VarIsTensor(*var)) {
+    if (var && var->IsType<LoDTensor>()) {
       auto* tensor_pd = GetLoDTensorOrSelectedRowsValueFromVar(*var);
       auto& ddim = tensor_pd->dims();
       for (int i = 0; i < ddim.size(); ++i) {
@@ -469,7 +469,7 @@ void NgraphOperator::Run(const Scope& scope,
     auto sp = var_node_map_->at(vi)->get_shape();
     std::shared_ptr<ngraph::runtime::Tensor> ti;
     auto* var = scope.FindVar(vi);
-    if (var && VarIsTensor(*var)) {
+    if (var && var->IsType<LoDTensor>()) {
       auto* tensor_pd = GetLoDTensorOrSelectedRowsValueFromVar(*var);
       PADDLE_ENFORCE(sp == Ddim2Shape(tensor_pd->dims()),
                      "Ensure ngraph tensor layout align with paddle tensor");
@@ -518,7 +518,7 @@ void NgraphOperator::Run(const Scope& scope,
     auto var_name = var_out_[i];
     auto* var = scope.FindVar(var_name);
     std::shared_ptr<ngraph::runtime::Tensor> to;
-    if (var && VarIsTensor(*var)) {
+    if (var && var->IsType<LoDTensor>()) {
       auto* tensor_pd = GetMutableLoDTensorOrSelectedRowsValueFromVar(var);
       auto dd = tensor_pd->dims();
       ngraph::Shape sp = Ddim2Shape(dd);
diff --git a/paddle/fluid/framework/operator.cc b/paddle/fluid/framework/operator.cc
index f3d225df69c5f6c320d60897b959f66e86080205..c6f3254e9f7cedcf47be8ce8c3eecf4aa1b57add 100644
--- a/paddle/fluid/framework/operator.cc
+++ b/paddle/fluid/framework/operator.cc
@@ -355,7 +355,7 @@ void OperatorBase::GenerateTemporaryNames() {
   }
 }
 
-bool VarIsTensor(const Variable& var) {
+static bool VarIsTensor(const Variable& var) {
   return var.IsType<LoDTensor>() || var.IsType<SelectedRows>();
 }
 
diff --git a/paddle/fluid/framework/operator.h b/paddle/fluid/framework/operator.h
index efc9a1b6f5a38f73fec2771d3bc6c3141f642baf..0a6a28a5bce01d71cf56f25f5556033db94452c2 100644
--- a/paddle/fluid/framework/operator.h
+++ b/paddle/fluid/framework/operator.h
@@ -64,7 +64,6 @@ inline std::string GradVarName(const std::string& var_name) {
 }
 
 proto::VarType::Type GetDataTypeOfVar(const Variable* var);
-bool VarIsTensor(const Variable& var);
 const Tensor* GetLoDTensorOrSelectedRowsValueFromVar(const Variable& var);
 Tensor* GetMutableLoDTensorOrSelectedRowsValueFromVar(Variable* var);