diff --git a/src/chat/replyer/default_generator.py b/src/chat/replyer/default_generator.py
index 7347cf03c..eff68bcfc 100644
--- a/src/chat/replyer/default_generator.py
+++ b/src/chat/replyer/default_generator.py
@@ -1899,10 +1899,12 @@ class DefaultReplyer:
 
     async def build_relation_info(self, sender: str, target: str):
         # 获取用户ID
+        if sender == f"{global_config.bot.nickname}(你)":
+            return f"你将要回复的是你自己发送的消息。"
+        
         person_info_manager = get_person_info_manager()
         person_id = await person_info_manager.get_person_id_by_person_name(sender)
-        if person_id == "SELF":
-            return f"你将要回复的是你自己发送的消息。"
+
         if not person_id:
             logger.warning(f"未找到用户 {sender} 的ID，跳过信息提取")
             return f"你完全不认识{sender}，不理解ta的相关信息。"
diff --git a/src/person_info/person_info.py b/src/person_info/person_info.py
index 00340040d..7b590d1c4 100644
--- a/src/person_info/person_info.py
+++ b/src/person_info/person_info.py
@@ -462,8 +462,6 @@ class PersonInfoManager:
         若未命中则查询数据库并更新缓存。
         """
         try:
-            if person_name == f"{global_config.bot.nickname}(你)":
-                return "SELF"
             # 优先使用内存缓存加速查找：self.person_name_list maps person_id -> person_name
             for pid, pname in self.person_name_list.items():
                 if pname == person_name: