diff --git a/app/api/api_recommendation.py b/app/api/api_recommendation.py
index 6dcdcc9..24ab52c 100644
--- a/app/api/api_recommendation.py
+++ b/app/api/api_recommendation.py
@@ -178,47 +178,23 @@ async def recommend(
 @router.get("/redis/user_pref")
 async def get_all_user_preferences():
     """
-    获取所有以 user_pref 为前缀的 Redis key 信息，按 account_id 分组
+    获取所有以 user_pref 为前缀的 Redis key 信息
     """
     try:
         from app.service.utils.redis_utils import Redis
         from app.service.recommendation_system.config import REDIS_KEY_USER_PREF_PREFIX
-        import json
         
         # 扫描所有匹配 user_pref:* 的 key
         pattern = f"{REDIS_KEY_USER_PREF_PREFIX}:*"
         keys = Redis.scan_keys(pattern)
         
-        # 按 account_id 分组
+        # 直接返回所有 key 和原始 value
         result = {}
         for key in keys:
-            # 解析 key 格式: user_pref:{account_id}:{category}
-            parts = key.split(':')
-            if len(parts) >= 3:
-                account_id = parts[1]
-                category = parts[2]
-                
-                # 读取对应的值
-                value = Redis.read(key)
-                if value:
-                    try:
-                        vector = json.loads(value)
-                        if account_id not in result:
-                            result[account_id] = {}
-                        result[account_id][category] = {
-                            'key': key,
-                            'preference_vector': vector,
-                            'vector_length': len(vector)
-                        }
-                    except json.JSONDecodeError:
-                        # 如果 JSON 解析失败，保存原始值
-                        if account_id not in result:
-                            result[account_id] = {}
-                        result[account_id][category] = {
-                            'key': key,
-                            'raw_value': value,
-                            'error': 'JSON decode failed'
-                        }
+            # 读取对应的值
+            value = Redis.read(key)
+            if value:
+                result[key] = value
         
         return result