diff --git a/webht/third_party/pay/controllers/WxpayService.php b/webht/third_party/pay/controllers/WxpayService.php
index 2ea28dae..60b5b837 100644
--- a/webht/third_party/pay/controllers/WxpayService.php
+++ b/webht/third_party/pay/controllers/WxpayService.php
@@ -93,6 +93,12 @@ class WxpayService extends CI_Controller {
         }
         async_curl($this->config->item('send_notify_url', 'wxpay'));
         async_curl('https://www.mycht.cn/webht.php/apps/pay/alipaytradeservice/get_billfile');
+        /**
+         * 每月20号发送退款给财务
+         */
+        if (date('d')==='20') {
+            async_curl('https://www.mycht.cn/webht.php/apps/pay/paymentservice/refund_finance_notify');
+        }
         return;
     }