diff --git a/app/api/endpoints/search.py b/app/api/endpoints/search.py
index ec6a9e90..3854fb9b 100644
--- a/app/api/endpoints/search.py
+++ b/app/api/endpoints/search.py
@@ -20,7 +20,7 @@ async def search_latest(_: schemas.TokenPayload = Depends(verify_token)) -> Any:
     """
     查询搜索结果
     """
-    torrents = await SearchChain().async_last_search_results()
+    torrents = await SearchChain().async_last_search_results() or []
     return [torrent.to_dict() for torrent in torrents]
 
 
diff --git a/app/chain/search.py b/app/chain/search.py
index 2f2f0fe3..dcf46864 100644
--- a/app/chain/search.py
+++ b/app/chain/search.py
@@ -86,13 +86,13 @@ class SearchChain(ChainBase):
             self.save_cache(contexts, self.__result_temp_file)
         return contexts
 
-    def last_search_results(self) -> List[Context]:
+    def last_search_results(self) -> Optional[List[Context]]:
         """
         获取上次搜索结果
         """
         return self.load_cache(self.__result_temp_file)
 
-    async def async_last_search_results(self) -> List[Context]:
+    async def async_last_search_results(self) -> Optional[List[Context]]:
         """
         异步获取上次搜索结果
         """