diff --git a/app/controller/add_knowledge_route.py b/app/controller/add_knowledge_route.py
index 1c15cd8..759ae21 100644
--- a/app/controller/add_knowledge_route.py
+++ b/app/controller/add_knowledge_route.py
@@ -31,7 +31,7 @@ def add_knowledge_route(app):
       chain = create_llm() | StrOutputParser()
 
       # 先把检索结果返回前端
-      yield f'data: {json.dumps({"type": "retrieve", "data": search_response.model_dump()}, ensure_ascii=False)}\n\n'
+      yield f'data: {json.dumps({"type": "retrieve", "data": json.dumps(search_response.model_dump())}, ensure_ascii=False)}\n\n'
 
       async for chunk in chain.astream([
         SystemMessage(content=f"""你需要根据如下内容来回答用户的问题：{search_response.answer}"""),