diff --git a/vue-fastapi-backend/module_admin/service/metasecurity_service.py b/vue-fastapi-backend/module_admin/service/metasecurity_service.py
index 6fe6078..e8bb90f 100644
--- a/vue-fastapi-backend/module_admin/service/metasecurity_service.py
+++ b/vue-fastapi-backend/module_admin/service/metasecurity_service.py
@@ -681,7 +681,7 @@ async def replace_table_with_subquery(ctrSqlDict, oldStrSql):
                       "USER", "CURRENT_DATE", "CURRENT_TIME", "CURRENT_TIMESTAMP",
                   }
             # 动态获取子查询
-            if original_table in ctrSqlDict and alias_name not in sql_keywords:
+            if original_table in ctrSqlDict and alias_name and alias_name.upper().split()[0] not in sql_keywords:
                 # 使用 ctrSqlDict 中的子查询替换表名
                 replaced = f"{keyword} ({ctrSqlDict[original_table]}) {alias_part}"
             else: