diff --git a/ruoyi-fastapi-backend/utils/semantic_cache_service.py b/ruoyi-fastapi-backend/utils/semantic_cache_service.py
index d65339c..bcb5a80 100644
--- a/ruoyi-fastapi-backend/utils/semantic_cache_service.py
+++ b/ruoyi-fastapi-backend/utils/semantic_cache_service.py
@@ -256,7 +256,11 @@ class SemanticCacheService:
                 ex=self.CACHE_TTL_HOURS * 3600
             )
             
-            logger.info(f"[SemanticCache] 已缓存: {question[:30]}...")
+            logger.info(f"[SemanticCache] 已缓存 | key={cache_key} | question={question[:30]}...")
+            
+            # 验证存储是否成功
+            verify = await redis.get(cache_key)
+            logger.info(f"[SemanticCache] 存储验证 | key={cache_key} | found={verify is not None}")
             return True
             
         except Exception as e:
@@ -415,8 +419,11 @@ def get_semantic_cache_service() -> SemanticCacheService:
 # 便捷函数
 async def lookup_question(chat_id: str, question: str, redis_client=None) -> Optional[Tuple[str, float]]:
     """查找缓存问题"""
+    logger.info(f"[SemanticCache.lookup_question] 入参 | chat_id={chat_id} | question={question}")
     service = get_semantic_cache_service()
-    return await service.lookup(chat_id, question, redis_client)
+    result = await service.lookup(chat_id, question, redis_client)
+    logger.info(f"[SemanticCache.lookup_question] 返回 | result={result is not None}")
+    return result
 
 
 async def store_qa_pair(chat_id: str, question: str, answer: str, redis_client=None) -> bool: