diff --git a/paddle/fluid/eager/auto_code_generator/final_state_generator/eager_gen.py b/paddle/fluid/eager/auto_code_generator/final_state_generator/eager_gen.py
index 078f1b30398ed49c2f029c86733f21a8651eeee5..c86c32542dc00a3d8abb7dda98d142e4bcf7ad15 100644
--- a/paddle/fluid/eager/auto_code_generator/final_state_generator/eager_gen.py
+++ b/paddle/fluid/eager/auto_code_generator/final_state_generator/eager_gen.py
@@ -906,7 +906,10 @@ class DygraphForwardFunctionGenerator(DygraphFunctionGeneratorBase):
                         f"if ({name}.get_ptr() != nullptr) amp_tensors_vector.push_back({{ *({name}.get_ptr()) }});\n"
                     )
                     amp_autocast_optional_list.append(
-                        f"auto NEW_{name} = ({name}.get_ptr() != nullptr) ? paddle::make_optional<const paddle::experimental::Tensor&>(egr::EagerAmpAutoCast(\"{name}\", *({name}.get_ptr()), amp_dst_dtype, op_name)) : {name};\n"
+                        f"auto NEW_{name}_temp_tensor = ({name}.get_ptr() != nullptr) ? egr::EagerAmpAutoCast(\"{name}\", *({name}.get_ptr()), amp_dst_dtype, op_name) : paddle::experimental::Tensor();\n"
+                    )
+                    amp_autocast_optional_list.append(
+                        f"auto NEW_{name} = ({name}.get_ptr() != nullptr) ? paddle::make_optional<const paddle::experimental::Tensor&>(NEW_{name}_temp_tensor) : {name};\n"
                     )
                 else:
                     if is_inplaced and inplace_map and name in inplace_map.keys(