diff --git a/apps/chat/serializers/chat.py b/apps/chat/serializers/chat.py
index 6cb8ff3ea..5bea26462 100644
--- a/apps/chat/serializers/chat.py
+++ b/apps/chat/serializers/chat.py
@@ -241,8 +241,8 @@ class ChatSerializers(serializers.Serializer):
                                           WorkFlowPostHandler(chat_info),
                                           base_to_response, form_data, image_list, document_list, audio_list,
                                           other_list,
-                                          self.data.get('runtime_node_id'),
-                                          self.data.get('node_data'), chat_record, self.data.get('child_node'))
+                                          instance.get('runtime_node_id'),
+                                          instance.get('node_data'), chat_record, instance.get('child_node'))
         r = work_flow_manage.run()
         return r