diff --git a/app/Services/Payment/WxpayService.php b/app/Services/Payment/WxpayService.php
index ae91cfec..6dc7d22f 100644
--- a/app/Services/Payment/WxpayService.php
+++ b/app/Services/Payment/WxpayService.php
@@ -135,7 +135,6 @@ class WxpayService
         $mchId = config('wechat.payment.sub.mch_id');
 
         if ($appId && $mchId) {
-            $params['sub_openid'] = Arr::pull($params, 'openid');
             $app->setSubMerchant($mchId, $appId);
         }