diff --git a/scripts/create_tables.py b/scripts/create_tables.py
index d0abafe..661df3d 100644
--- a/scripts/create_tables.py
+++ b/scripts/create_tables.py
@@ -22,6 +22,21 @@ from ahserver.globalEnv import initEnv
 TABLE_MODULES = ['product_management', 'discount', 'pricing', 'unipay', 'smssend']
 
 
+# appbase 系统级配置表（幂等建表 + 默认参数，不 DROP 以免清空运行时数据）
+_PARAMS_DDL = """
+CREATE TABLE IF NOT EXISTS params (
+  `id` VARCHAR(32)   comment 'id',
+  `params_name` VARCHAR(255)   comment '参数名称',
+  `params_value` VARCHAR(4000)   comment '参数值',
+  primary key(id)
+) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci engine=innodb comment '系统参数表';
+"""
+
+_PARAMS_INIT = [
+    ("workspace_base", "/d/pipeline/workspaces"),
+]
+
+
 def split_ddl(ddl):
     """按分号分割 DDL，跳过注释行和空语句。"""
     stmts = []
@@ -57,6 +72,19 @@ async def main():
                 n += 1
             print(f'  tables: {mod} created ({n} statements)')
 
+        # appbase params 表幂等建表 + 默认参数
+        try:
+            await sor.execute(_PARAMS_DDL, {})
+            for pname, pval in _PARAMS_INIT:
+                await sor.execute(
+                    "INSERT INTO params (id, params_name, params_value) "
+                    "VALUES (${id}$, ${n}$, ${v}$) "
+                    "ON DUPLICATE KEY UPDATE params_value=${v}$",
+                    {"id": pname, "n": pname, "v": pval})
+            print('  tables: appbase params ensured (workspace_base)')
+        except Exception as e:
+            print(f'  WARN: appbase params ensure failed: {e}')
+
 
 if __name__ == '__main__':
     asyncio.run(main())