diff --git a/apps/application/serializers/application_chat_record.py b/apps/application/serializers/application_chat_record.py
index 08f0e5e93b1..04fb4a60907 100644
--- a/apps/application/serializers/application_chat_record.py
+++ b/apps/application/serializers/application_chat_record.py
@@ -110,6 +110,16 @@ def list(self, with_valid=True):
         return [ChatRecordSerializerModel(chat_record).data for chat_record in
                 QuerySet(ChatRecord).filter(chat_id=self.data.get('chat_id')).order_by(order_by)]
 
+    @staticmethod
+    def get_loop_workflow_node(details):
+        result = []
+        for item in details.values():
+            if item.get('type') == 'loop-node':
+                for loop_item in item.get('loop_node_data') or []:
+                    for inner_item in loop_item.values():
+                        result.append(inner_item)
+        return result
+
     @staticmethod
     def reset_chat_record(chat_record, show_source, show_exec):
         knowledge_list = []
@@ -119,7 +129,8 @@ def reset_chat_record(chat_record, show_source, show_exec):
             paragraph_list = chat_record.details.get('search_step').get(
                 'paragraph_list')
 
-        for item in chat_record.details.values():
+        for item in [*chat_record.details.values(),
+                     *ApplicationChatRecordQuerySerializers.get_loop_workflow_node(chat_record.details)]:
             if item.get('type') == 'search-knowledge-node' and item.get('show_knowledge', False):
                 paragraph_list = paragraph_list + (item.get(
                     'paragraph_list') or [])