diff --git a/FlyCube/MpApi/Controller/PlaneController.class.php b/FlyCube/MpApi/Controller/PlaneController.class.php
index 038c89d..aa3fb6f 100644
--- a/FlyCube/MpApi/Controller/PlaneController.class.php
+++ b/FlyCube/MpApi/Controller/PlaneController.class.php
@@ -607,7 +607,7 @@ class PlaneController extends PublicController
 			$data['refund_status'] = htmlspecialchars($_REQUEST['refund_status']);
 		}
 		if ($_REQUEST['by_plane_id']) {
-			$data['by_plane_id'] = intval($_REQUEST['by_plane_id']);
+			$data['by_plane_id'] = ($_REQUEST['by_plane_id'] === 'null') ? null : intval($_REQUEST['by_plane_id']);
 		}
 		if ($orderDb->where($where)->save($data)) { //修改数据
 			$topicPrefix = makeTopicPrefix($order['openid']); //小程序端用户订阅主题的前缀 ps:订单对应的用户的openid算出来的