diff --git a/components/Coupons.vue b/components/Coupons.vue
index 63a3b68..69b4bb2 100644
--- a/components/Coupons.vue
+++ b/components/Coupons.vue
@@ -76,7 +76,8 @@ export default {
     },
     selectCoupon() {
       if (!this.radioModel) return
-      this.$emit('change', this.data.id)
+      // 已选中则可以取消选中
+      this.$emit('change', this.data.checked ? '' : this.data.id)
     }
   }
 }