diff --git a/paddle/operators/transpose_op.cc b/paddle/operators/transpose_op.cc
index 107d80cde7a3e956ee35cf8373f774c565adc8e5..babf2f561c31d5436fe1611c576e6e7fc04401db 100644
--- a/paddle/operators/transpose_op.cc
+++ b/paddle/operators/transpose_op.cc
@@ -25,19 +25,18 @@ class TransposeOp : public framework::OperatorWithKernel {
 
  protected:
   void InferShape(const framework::InferShapeContext &ctx) const override {
-    PADDLE_ENFORCE_NOT_NULL(ctx.InputVar("Input"),
-                            "Input(Input) should not be null");
-    PADDLE_ENFORCE_NOT_NULL(ctx.OutputVar("Output"),
-                            "Output(Output) should not be null");
-    auto input_dim = ctx.Input<Tensor>("Input")->dims();
+    PADDLE_ENFORCE_NOT_NULL(ctx.InputVar("X"), "Input(X) should not be null");
+    PADDLE_ENFORCE_NOT_NULL(ctx.OutputVar("Out"),
+                            "Output(Out) should not be null");
+    auto x_dims = ctx.Input<Tensor>("X")->dims();
     std::vector<int> axis = ctx.Attr<std::vector<int>>("axis");
-    size_t input_rank = input_dim.size();
+    size_t x_rank = x_dims.size();
     size_t axis_size = axis.size();
 
-    PADDLE_ENFORCE_EQ(input_rank, axis_size,
+    PADDLE_ENFORCE_EQ(x_rank, axis_size,
                       "the input tensor's rank(%d) "
                       "should be equal to the axis's size(%d)",
-                      input_rank, axis_size);
+                      x_rank, axis_size);
 
     std::vector<int> count(axis_size, 0);
     for (size_t i = 0; i < axis_size; i++) {
@@ -48,11 +47,11 @@ class TransposeOp : public framework::OperatorWithKernel {
           "where the dims is the axis's size");
     }
 
-    framework::DDim output_dim(input_dim);
+    framework::DDim out_dims(x_dims);
     for (size_t i = 0; i < axis_size; i++) {
-      output_dim[i] = input_dim[axis[i]];
+      out_dims[i] = x_dims[axis[i]];
     }
-    ctx.Output<framework::LoDTensor>("Output")->Resize(output_dim);
+    ctx.Output<framework::LoDTensor>("Out")->Resize(out_dims);
   }
 };
 
@@ -62,9 +61,9 @@ class TransposeOpMaker : public framework::OpProtoAndCheckerMaker {
                    framework::OpAttrChecker *op_checker)
       : OpProtoAndCheckerMaker(proto, op_checker) {
     AddInput(
-        "Input",
+        "X",
         "(Tensor)The input tensor, tensors with rank at most 6 are supported");
-    AddOutput("Output", "(Tensor)The output tensor");
+    AddOutput("Out", "(Tensor)The output tensor");
     AddAttr<std::vector<int>>(
         "axis",
         "(vector<int>)a list of values, and the size of the list should be "
@@ -96,15 +95,14 @@ class TransposeOpGrad : public framework::OperatorWithKernel {
 
  protected:
   void InferShape(const framework::InferShapeContext &ctx) const override {
-    PADDLE_ENFORCE_NOT_NULL(ctx.InputVar("Input"),
-                            "Input(Input) should not be null");
-    PADDLE_ENFORCE_NOT_NULL(ctx.InputVar(framework::GradVarName("Output")),
-                            "Input(Output@GRAD) should not be null");
-    auto input_dim = ctx.Input<Tensor>("Input")->dims();
-    auto *input_grad =
-        ctx.Output<framework::LoDTensor>(framework::GradVarName("Input"));
-
-    if (input_grad) input_grad->Resize(input_dim);
+    PADDLE_ENFORCE_NOT_NULL(ctx.InputVar("X"), "Input(X) should not be null");
+    PADDLE_ENFORCE_NOT_NULL(ctx.InputVar(framework::GradVarName("Out")),
+                            "Input(Out@GRAD) should not be null");
+    auto x_dims = ctx.Input<Tensor>("X")->dims();
+    auto *x_grad =
+        ctx.Output<framework::LoDTensor>(framework::GradVarName("X"));
+
+    if (x_grad) x_grad->Resize(x_dims);
   }
 };
 
diff --git a/paddle/operators/transpose_op.h b/paddle/operators/transpose_op.h
index 731b6a77016ca8d033b78e0b708cfb0ec5feb5ee..ea299dce72ad340b0a65ee50582dc156b5ad7abb 100644
--- a/paddle/operators/transpose_op.h
+++ b/paddle/operators/transpose_op.h
@@ -41,30 +41,30 @@ template <typename Place, typename T>
 class TransposeKernel : public framework::OpKernel {
  public:
   void Compute(const framework::ExecutionContext& context) const override {
-    auto* input = context.Input<framework::Tensor>("Input");
-    auto* output = context.Output<framework::Tensor>("Output");
-    output->mutable_data<T>(context.GetPlace());
+    auto* x = context.Input<framework::Tensor>("X");
+    auto* out = context.Output<framework::Tensor>("Out");
+    out->mutable_data<T>(context.GetPlace());
 
     std::vector<int> axis = context.Attr<std::vector<int>>("axis");
     int ndims = axis.size();
     switch (ndims) {
       case 1:
-        EigenTranspose<Place, T, 1>(context, *input, *output, axis);
+        EigenTranspose<Place, T, 1>(context, *x, *out, axis);
         break;
       case 2:
-        EigenTranspose<Place, T, 2>(context, *input, *output, axis);
+        EigenTranspose<Place, T, 2>(context, *x, *out, axis);
         break;
       case 3:
-        EigenTranspose<Place, T, 3>(context, *input, *output, axis);
+        EigenTranspose<Place, T, 3>(context, *x, *out, axis);
         break;
       case 4:
-        EigenTranspose<Place, T, 4>(context, *input, *output, axis);
+        EigenTranspose<Place, T, 4>(context, *x, *out, axis);
         break;
       case 5:
-        EigenTranspose<Place, T, 5>(context, *input, *output, axis);
+        EigenTranspose<Place, T, 5>(context, *x, *out, axis);
         break;
       case 6:
-        EigenTranspose<Place, T, 6>(context, *input, *output, axis);
+        EigenTranspose<Place, T, 6>(context, *x, *out, axis);
         break;
       default:
         PADDLE_THROW("Tensors with rank at most 6 are supported");
@@ -76,12 +76,12 @@ template <typename Place, typename T>
 class TransposeGradKernel : public framework::OpKernel {
  public:
   void Compute(const framework::ExecutionContext& context) const override {
-    auto* output_grad =
-        context.Input<framework::Tensor>(framework::GradVarName("Output"));
-    auto* input_grad =
-        context.Output<framework::Tensor>(framework::GradVarName("Input"));
-    if (input_grad) {
-      input_grad->mutable_data<T>(context.GetPlace());
+    auto* out_grad =
+        context.Input<framework::Tensor>(framework::GradVarName("Out"));
+    auto* x_grad =
+        context.Output<framework::Tensor>(framework::GradVarName("X"));
+    if (x_grad) {
+      x_grad->mutable_data<T>(context.GetPlace());
 
       std::vector<int> axis = context.Attr<std::vector<int>>("axis");
       std::vector<int> reversed_axis(axis);
@@ -94,27 +94,27 @@ class TransposeGradKernel : public framework::OpKernel {
 
       switch (ndims) {
         case 1:
-          EigenTranspose<Place, T, 1>(context, *output_grad, *input_grad,
+          EigenTranspose<Place, T, 1>(context, *out_grad, *x_grad,
                                       reversed_axis);
           break;
         case 2:
-          EigenTranspose<Place, T, 2>(context, *output_grad, *input_grad,
+          EigenTranspose<Place, T, 2>(context, *out_grad, *x_grad,
                                       reversed_axis);
           break;
         case 3:
-          EigenTranspose<Place, T, 3>(context, *output_grad, *input_grad,
+          EigenTranspose<Place, T, 3>(context, *out_grad, *x_grad,
                                       reversed_axis);
           break;
         case 4:
-          EigenTranspose<Place, T, 4>(context, *output_grad, *input_grad,
+          EigenTranspose<Place, T, 4>(context, *out_grad, *x_grad,
                                       reversed_axis);
           break;
         case 5:
-          EigenTranspose<Place, T, 5>(context, *output_grad, *input_grad,
+          EigenTranspose<Place, T, 5>(context, *out_grad, *x_grad,
                                       reversed_axis);
           break;
         case 6:
-          EigenTranspose<Place, T, 6>(context, *output_grad, *input_grad,
+          EigenTranspose<Place, T, 6>(context, *out_grad, *x_grad,
                                       reversed_axis);
           break;
         default:
diff --git a/python/paddle/v2/framework/tests/test_transpose_op.py b/python/paddle/v2/framework/tests/test_transpose_op.py
index 373a988f5f8c2a01d481b3149d9a00e7d536078b..9409cbaa00f792b60d5950556b869108aa732478 100644
--- a/python/paddle/v2/framework/tests/test_transpose_op.py
+++ b/python/paddle/v2/framework/tests/test_transpose_op.py
@@ -7,15 +7,15 @@ class TestTransposeOp(OpTest):
     def setUp(self):
         self.initTestCase()
         self.op_type = "transpose"
-        self.inputs = {'Input': np.random.random(self.shape).astype("float32")}
+        self.inputs = {'X': np.random.random(self.shape).astype("float32")}
         self.attrs = {'axis': list(self.axis)}
-        self.outputs = {'Output': self.inputs['Input'].transpose(self.axis)}
+        self.outputs = {'Out': self.inputs['X'].transpose(self.axis)}
 
     def test_check_output(self):
         self.check_output()
 
     def test_check_grad(self):
-        self.check_grad(['Input'], 'Output')
+        self.check_grad(['X'], 'Out')
 
     def initTestCase(self):
         self.shape = (3, 4)