diff --git a/paddle/phi/infermeta/unary.cc b/paddle/phi/infermeta/unary.cc
index f8798982581aa21747b99779c1c575b1bdcfbec2..c0b6c2b0e225cb331f3bb85be2e5d610e1297ece 100644
--- a/paddle/phi/infermeta/unary.cc
+++ b/paddle/phi/infermeta/unary.cc
@@ -3872,6 +3872,7 @@ void UnfoldInferMeta(const MetaTensor& x,
                                                 paddings[1],
                                                 paddings[3],
                                                 strides[1]);
+  int output_col_length = output_height * output_width;
   if (config.is_runtime) {
     // only check output height and width in runtime
     PADDLE_ENFORCE_GT(
@@ -3910,8 +3911,10 @@ void UnfoldInferMeta(const MetaTensor& x,
             dilations[1],
             output_height,
             output_width));
+  } else {
+    output_col_length =
+        output_height == -1 || output_width == -1 ? -1 : output_col_length;
   }
-  int output_col_length = output_height * output_width;
   out_dims.push_back(output_col_length);
   out->set_dims(phi::make_ddim(out_dims));
 }
diff --git a/paddle/phi/kernels/funcs/unfold_functor.h b/paddle/phi/kernels/funcs/unfold_functor.h
index 2bd5437a7f10a264426b8e87f1423d2b1bc454de..5a32bf4a3432edcd064eb837658918b297308632 100644
--- a/paddle/phi/kernels/funcs/unfold_functor.h
+++ b/paddle/phi/kernels/funcs/unfold_functor.h
@@ -26,7 +26,7 @@ inline int CalcOutputSize(int input_size,
                           int stride) {
   const int dkernel = dilation * (filter_size - 1) + 1;
   int output_size = (input_size + padding1 + padding2 - dkernel) / stride + 1;
-  return output_size;
+  return input_size == -1 ? -1 : output_size;
 }
 
 }  // namespace funcs