diff --git a/ppcls/arch/backbone/base/theseus_layer.py b/ppcls/arch/backbone/base/theseus_layer.py
index 40f5d317140036f21c265681b0f64a4e687b0bfb..fb06c183b82deef21157aaab52ea52386d6d8e8b 100644
--- a/ppcls/arch/backbone/base/theseus_layer.py
+++ b/ppcls/arch/backbone/base/theseus_layer.py
@@ -29,10 +29,16 @@ class TheseusLayer(nn.Layer):
     def _save_sub_res_hook(self, layer, input, output):
         self.res_dict[self.res_name] = output
 
-    def replace_sub(self,
-                    layer_name_pattern: Union[str, List[str]],
-                    handle_func: Callable[[nn.Layer, str], nn.Layer]) -> Dict[
-                        str, nn.Layer]:
+    def replace_sub(self, *args, **kwargs) -> None:
+        msg = "\"replace_sub\" is deprecated, please use \"layer_wrench\" instead."
+        logger.error(DeprecationWarning(msg))
+        raise DeprecationWarning(msg)
+
+    # TODO(gaotingquan): what is a good name?
+    def layer_wrench(self,
+                     layer_name_pattern: Union[str, List[str]],
+                     handle_func: Callable[[nn.Layer, str], nn.Layer]) -> Dict[
+                         str, nn.Layer]:
         """use 'handle_func' to modify the sub-layer(s) specified by 'layer_name_pattern'.
 
         Args:
@@ -59,7 +65,7 @@ class TheseusLayer(nn.Layer):
             net = paddleclas.MobileNetV1()
             res = net.replace_sub(layer_name_pattern=["blocks[11].depthwise_conv.conv", "blocks[12].depthwise_conv.conv"], handle_func=rep_func)
             print(res)
-            # {'blocks[11].depthwise_conv.conv': True, 'blocks[12].depthwise_conv.conv': True}
+            # {'blocks[11].depthwise_conv.conv': the corresponding new_layer, 'blocks[12].depthwise_conv.conv': the corresponding new_layer}
         """
 
         if not isinstance(layer_name_pattern, list):