diff --git a/pages/jingxuan/selected-brands.vue b/pages/jingxuan/selected-brands.vue
index 64d7d58..988a1dc 100644
--- a/pages/jingxuan/selected-brands.vue
+++ b/pages/jingxuan/selected-brands.vue
@@ -230,7 +230,8 @@ export default {
       const params = {
         first_class: this.activeId || undefined,
         second_class: targetSecondClass || undefined,
-        order_type: this.orderType
+        // 如果 orderType 是 0，则设为 undefined，使其不传给后端
+        order_type: this.orderType === 0 ? undefined : this.orderType
       };
 
       Object.keys(params).forEach(key => {