diff --git a/Test/pay-transfers-create.php b/Test/pay-transfers-create.php
new file mode 100644
index 0000000..e91a60e
--- /dev/null
+++ b/Test/pay-transfers-create.php
@@ -0,0 +1,44 @@
+<?php
+
+// +----------------------------------------------------------------------
+// | WeChatDeveloper
+// +----------------------------------------------------------------------
+// | 版权所有 2014~2018 广州楚才信息科技有限公司 [ http://www.cuci.cc ]
+// +----------------------------------------------------------------------
+// | 官方网站: http://think.ctolog.com
+// +----------------------------------------------------------------------
+// | 开源协议 ( https://mit-license.org )
+// +----------------------------------------------------------------------
+// | github开源项目：https://github.com/zoujingli/WeChatDeveloper
+// +----------------------------------------------------------------------
+
+try {
+
+    // 1. 手动加载入口文件
+    include "../include.php";
+
+    // 2. 准备公众号配置参数
+    $config = include "./config.php";
+
+    // 3. 创建接口实例
+    $wechat = new \WeChat\Pay($config);
+
+    // 4. 组装参数，可以参考官方商户文档
+    $options = [
+        'partner_trade_no' => '1008450740201411110005820873',
+        'openid'           => '商户退款单号',
+        'check_name'       => 'NO_CHECK',
+        'amount'           => '100',
+        'desc'             => '企业付款操作说明信息',
+        'spbill_create_ip' => '127.0.0.1',
+    ];
+    $result = $wechat->createTransfers($options);
+
+    var_export($result);
+
+} catch (Exception $e) {
+
+    // 出错啦，处理下吧
+    echo $e->getMessage() . PHP_EOL;
+
+}
\ No newline at end of file
diff --git a/WeChat/Pay.php b/WeChat/Pay.php
index b57d43b..00f4ff1 100644
--- a/WeChat/Pay.php
+++ b/WeChat/Pay.php
@@ -232,6 +232,10 @@ class Pay
      */
     public function createTransfers(array $options)
     {
+        $this->params->set('mchid', $this->config->get('mch_id'));
+        $this->params->set('mch_appid', $this->config->get('appid'));
+        $this->params->offsetUnset('appid');
+        $this->params->offsetUnset('mch_id');
         $url = 'https://api.mch.weixin.qq.com/mmpaymkttransfers/promotion/transfers';
         return $this->callPostApi($url, $options, true, 'MD5', false);
     }