diff --git a/src/controllers/CardController.ts b/src/controllers/CardController.ts
index 0399a06..ee54078 100644
--- a/src/controllers/CardController.ts
+++ b/src/controllers/CardController.ts
@@ -68,10 +68,18 @@ export default class CardController extends BaseController {
       throw new ZError(103, '卡组已被删除')
     }
     if (!record) {
+      let count = await CardGroup.count({accountid, isdefault: false, deleted: false})
+      let account = req.user
+      if (count >= account.slot) {
+        throw new ZError(105, '英雄可使用的卡槽数量不足')
+      }
       record = new CardGroup()
       record.accountid = accountid
       record.isdefault = false
     }
+    if (record.isdefault) {
+      throw new ZError(104, '默认卡组不能修改')
+    }
     if (selected) {
       await CardGroup.updateMany({
         accountid,