diff --git a/src/Foundation/ServiceProviders/MiniProgramServiceProvider.php b/src/Foundation/ServiceProviders/MiniProgramServiceProvider.php
index 3be365d07..e4c6e61de 100644
--- a/src/Foundation/ServiceProviders/MiniProgramServiceProvider.php
+++ b/src/Foundation/ServiceProviders/MiniProgramServiceProvider.php
@@ -34,6 +34,7 @@
 use EasyWeChat\MiniProgram\Stats\Stats;
 use EasyWeChat\MiniProgram\SubscribeMessage\SubscribeMessage;
 use EasyWeChat\MiniProgram\Transactions\AfterSale\AfterSale;
+use EasyWeChat\MiniProgram\Transactions\AfterSale\EcAfterSale;
 use EasyWeChat\MiniProgram\Transactions\Coupon\Coupon;
 use EasyWeChat\MiniProgram\Transactions\Delivery\Delivery;
 use EasyWeChat\MiniProgram\Transactions\Order\Order;
@@ -130,6 +131,12 @@ public function register(Container $pimple)
                 $pimple['config']['mini_program']
             );
         };
+        $pimple['mini_program.ecAftersale'] = function ($pimple) {
+            return new EcAfterSale(
+                $pimple['mini_program.access_token'],
+                $pimple['config']['mini_program']
+            );
+        };
         $pimple['mini_program.coupon'] = function ($pimple) {
             return new Coupon(
                 $pimple['mini_program.access_token'],
diff --git a/src/MiniProgram/MiniProgram.php b/src/MiniProgram/MiniProgram.php
index a694e1884..d1eb70dec 100644
--- a/src/MiniProgram/MiniProgram.php
+++ b/src/MiniProgram/MiniProgram.php
@@ -43,6 +43,7 @@
  * @property \EasyWeChat\MiniProgram\Transactions\Spu\Product $product
  * @property \EasyWeChat\MiniProgram\Transactions\Delivery\Delivery $delivery
  * @property \EasyWeChat\MiniProgram\Transactions\AfterSale\AfterSale $aftersale
+ * @property \EasyWeChat\MiniProgram\Transactions\AfterSale\EcAfterSale $ecAftersale
  * @property \EasyWeChat\MiniProgram\Transactions\Coupon\Coupon $coupon
  */
 class MiniProgram
diff --git a/src/MiniProgram/Transactions/AfterSale/EcAfterSale.php b/src/MiniProgram/Transactions/AfterSale/EcAfterSale.php
new file mode 100644
index 000000000..677924774
--- /dev/null
+++ b/src/MiniProgram/Transactions/AfterSale/EcAfterSale.php
@@ -0,0 +1,170 @@
+<?php
+/**
+ * Created by PhpStorm.
+ * User: baixinghai
+ * Date: 2022/4/14
+ * Time: 17:57 PM
+ */
+
+namespace EasyWeChat\MiniProgram\Transactions\AfterSale;
+
+use EasyWeChat\MiniProgram\Core\AbstractMiniProgram;
+
+class EcAfterSale extends AbstractMiniProgram
+{
+    const API_POST_SHOP_ADD = 'https://api.weixin.qq.com/shop/ecaftersale/add';
+    const API_POST_SHOP_CANCEL = 'https://api.weixin.qq.com/shop/ecaftersale/cancel';
+    const API_POST_SHOP_UPLOAD_RETURNINFO = 'https://api.weixin.qq.com/shop/ecaftersale/uploadreturninfo';
+    const API_POST_SHOP_GET = 'https://api.weixin.qq.com/shop/ecaftersale/get';
+    const API_POST_SHOP_GET_LIST = 'https://api.weixin.qq.com/shop/ecaftersale/get_list';
+    const API_POST_SHOP_ACCEPT_REFUND = 'https://api.weixin.qq.com/shop/ecaftersale/acceptrefund';
+    const API_POST_SHOP_ACCEPT_RETURN = 'https://api.weixin.qq.com/shop/ecaftersale/acceptreturn';
+    const API_POST_SHOP_REJECT = 'https://api.weixin.qq.com/shop/ecaftersale/reject';
+    const API_POST_SHOP_UPLOAD_CERTIFICATES = 'https://api.weixin.qq.com/shop/ecaftersale/upload_certificates';
+    const API_POST_SHOP_UPDATE = 'https://api.weixin.qq.com/shop/ecaftersale/update';
+
+    /**
+     * 生成售后单
+     * @param array $params
+     * @return \Psr\Http\Message\StreamInterface
+     */
+    public function add(array $params)
+    {
+        return $this->getStream(self::API_POST_SHOP_ADD, $params);
+    }
+
+    /**
+     * 用户取消售后单
+     * @param string $outAftersaleId
+     * @param string $aftersaleId
+     * @param string $openId
+     * @return \Psr\Http\Message\StreamInterface
+     */
+    public function cancel(string $outAftersaleId, string $aftersaleId, string $openId)
+    {
+        $params = [
+            "out_aftersale_id" => $outAftersaleId,
+            "aftersale_id" => $aftersaleId,
+            "openid" => $openId,
+        ];
+        return $this->getStream(self::API_POST_SHOP_CANCEL, $params);
+    }
+
+    /**
+     * 用户上传物流信息
+     * @param string $outAftersaleId
+     * @param string $aftersaleId
+     * @param string $openId
+     * @param string $deliveryId
+     * @param string $waybillId
+     * @param string $deliveryName
+     * @return \Psr\Http\Message\StreamInterface
+     */
+    public function uploadReturnInfo(string $outAftersaleId, string $aftersaleId, string $openId, string $deliveryId, string $waybillId, string $deliveryName)
+    {
+        $params = [
+            "out_aftersale_id" => $outAftersaleId,
+            "aftersale_id" => $aftersaleId,
+            "openid" => $openId,
+            "delivery_id" => $deliveryId,
+            "waybill_id" => $waybillId,
+            "delivery_name" => $deliveryName,
+        ];
+        return $this->getStream(self::API_POST_SHOP_UPLOAD_RETURNINFO, $params);
+    }
+
+    /**
+     * 获取售后单详情
+     * @param string $outAftersaleId
+     * @param string $aftersaleId
+     * @return \Psr\Http\Message\StreamInterface
+     */
+    public function get(string $outAftersaleId, string $aftersaleId)
+    {
+        $params = [
+            "out_aftersale_id" => $outAftersaleId,
+            "aftersale_id" => $aftersaleId,
+        ];
+        return $this->getStream(self::API_POST_SHOP_GET, $params);
+    }
+    
+    /**
+     * 获取售后单列表
+     * @param array $params
+     * @return \Psr\Http\Message\StreamInterface
+     */
+    public function getList(array $params)
+    {
+        return $this->getStream(self::API_POST_SHOP_GET_LIST, $params);
+    }
+
+    /**
+     * 同意退款
+     * @param string $outAftersaleId
+     * @return \Psr\Http\Message\StreamInterface
+     */
+    public function acceptRefund(string $outAftersaleId)
+    {
+        $params = [
+            "out_aftersale_id" => $outAftersaleId,
+        ];
+        return $this->getStream(self::API_POST_SHOP_ACCEPT_REFUND, $params);
+    }
+
+    /**
+     * 同意退货
+     * @param array $params
+     * @return \Psr\Http\Message\StreamInterface
+     */
+    public function acceptReturn(array $params)
+    {
+        return $this->getStream(self::API_POST_SHOP_ACCEPT_RETURN, $params);
+    }
+
+    /**
+     * 拒绝售后
+     * @param string $aftersaleId
+     * @return \Psr\Http\Message\StreamInterface
+     */
+    public function reject(string $aftersaleId)
+    {
+        $params = [
+            "aftersale_id" => $aftersaleId,
+        ];
+        return $this->getStream(self::API_POST_SHOP_REJECT, $params);
+    }
+
+    /**
+     * 上传退款凭证
+     * @param array $params
+     * @return \Psr\Http\Message\StreamInterface
+     */
+    public function uploadCertificates(array $params)
+    {
+        return $this->getStream(self::API_POST_SHOP_UPLOAD_CERTIFICATES, $params);
+    }
+
+    /**
+     * 更新售后单
+     * @param array $params
+     * @return \Psr\Http\Message\StreamInterface
+     */
+    public function update(array $params)
+    {
+        return $this->getStream(self::API_POST_SHOP_UPDATE, $params);
+    }
+
+    /**
+     * Get stream.
+     *
+     * @param string $endpoint
+     * @param array $params
+     *
+     * @return \Psr\Http\Message\StreamInterface
+     */
+    protected function getStream($endpoint, $params)
+    {
+        return json_decode(strval($this->getHttp()
+            ->json($endpoint, $params)->getBody()), true);
+    }
+}
\ No newline at end of file
diff --git a/src/MiniProgram/Transactions/Order/Order.php b/src/MiniProgram/Transactions/Order/Order.php
index c90a13703..6ce808992 100644
--- a/src/MiniProgram/Transactions/Order/Order.php
+++ b/src/MiniProgram/Transactions/Order/Order.php
@@ -22,6 +22,7 @@ class Order extends AbstractMiniProgram
     const API_POST_ORDER_GET_LIST = 'https://api.weixin.qq.com/shop/order/get_list';
     const API_POST_ORDER_BY_FINDER = 'https://api.weixin.qq.com/shop/order/get_list_by_finder';
     const API_POST_ORDER_BY_SHARE = 'https://api.weixin.qq.com/shop/order/get_list_by_sharer';
+    const API_POST_ORDER_PARAMS = 'https://api.weixin.qq.com/shop/order/getpaymentparams';
 
 
     /** 获取场景
@@ -111,6 +112,22 @@ public function orders(array $params)
         return $this->getStream(self::API_POST_ORDER_GET_LIST, $params);
     }
 
+    /** 生成支付参数
+     * @param string $orderId
+     * @param string $outOrderId
+     * @param string $openId
+     * @return \Psr\Http\Message\StreamInterface
+     */
+    public function getPaymentParams(string $openId, string $orderId = "", string $outOrderId = "")
+    {
+        $params = [
+            "order_id" => $orderId,
+            "out_order_id" => $outOrderId,
+            "openid" => $openId
+        ];
+        return $this->getStream(self::API_POST_ORDER_PARAMS, $params);
+    }
+
     /**
      * Get stream.
      *