diff --git a/src/main/java/com/ycwl/basic/service/impl/mobile/WxPayServiceImpl.java b/src/main/java/com/ycwl/basic/service/impl/mobile/WxPayServiceImpl.java
index 2eac1e2..c8bc1a6 100644
--- a/src/main/java/com/ycwl/basic/service/impl/mobile/WxPayServiceImpl.java
+++ b/src/main/java/com/ycwl/basic/service/impl/mobile/WxPayServiceImpl.java
@@ -15,6 +15,10 @@ import com.wechat.pay.java.service.partnerpayments.jsapi.model.Transaction;
 import com.wechat.pay.java.service.payments.jsapi.JsapiService;
 import com.wechat.pay.java.service.payments.jsapi.model.*;
 import com.wechat.pay.java.service.payments.model.TransactionAmount;
+import com.wechat.pay.java.service.refund.RefundService;
+import com.wechat.pay.java.service.refund.model.AmountReq;
+import com.wechat.pay.java.service.refund.model.CreateRequest;
+import com.wechat.pay.java.service.refund.model.Refund;
 import com.ycwl.basic.config.WechatConfig;
 import com.ycwl.basic.constant.HttpConstant;
 import com.ycwl.basic.constant.NumberConstant;
@@ -58,6 +62,7 @@ import java.util.stream.Collectors;
 import java.util.stream.Stream;
 
 import static com.wechat.pay.java.core.http.Constant.*;
+import static com.wechat.pay.java.service.refund.model.Status.SUCCESS;
 import static com.ycwl.basic.constant.WeiXinConstant.*;
 
 /**
@@ -244,23 +249,28 @@ public class WxPayServiceImpl implements WxPayService {
     public Boolean refundOrder(String orderId) throws Exception {
         OrderRespVO orderDetail = orderService.detail(Long.parseLong(orderId)).getData();
         BigDecimal payPrice = orderDetail.getPayPrice();
-        int priceInCents = payPrice.multiply(new BigDecimal(NumberConstant.HUNDRED)).intValue(); // 转换为分（int）
-        // 构建退款请求参数
-        Map<String, Object> data = new HashMap<>();
-        data.put(WECHATPAY_OUT_TRADE_NO, orderId);// 你要退款的订单号
-        data.put(WECHATPAY_OUT_REFUND_NO, SnowFlakeUtil.getId()); // 退款订单号（随机生成一个就行，保证不重复）
+        long priceInCents = payPrice.multiply(new BigDecimal(NumberConstant.HUNDRED)).longValue(); // 转换为分（int）
 
-        Map<String, Object> amount = new HashMap<>();
-        amount.put(WECHATPAY_REFUND, priceInCents); // 退款金额（以分为单位）
-        amount.put(WECHATPAY_TOTAL, priceInCents); // 订单总金额（以分为单位）
-        amount.put(WECHATPAY_CURRENCY, WECHATPAY_CURRENCY_CNY);
-        data.put(WECHATPAY_AMOUNT, amount);
-
-        // 回调通知 URL
-        data.put(WECHATPAY_NOTIFY_URL, wechatConfig.getRefundNotifyUrl());
-        Map<String, Object> stringObjectMap = this.processRefund(data);
-        if (stringObjectMap.get(WECHATPAY_STATUS).equals(WECHATPAY_SUCCESS)
-                || stringObjectMap.get(WECHATPAY_STATUS).equals(WECHATPAY_PROCESSING)) {
+        Config config =
+                new RSAAutoCertificateConfig.Builder()
+                        .merchantId(wechatConfig.getMchId())
+                        // 使用 com.wechat.pay.java.core.util 中的函数从本地文件中加载商户私钥，商户私钥会用来生成请求的签名
+                        .privateKey(wechatConfig.getKeyPath())
+                        .merchantSerialNumber(wechatConfig.getMchSerialNo())
+                        .apiV3Key(wechatConfig.getApiV3())
+                        .build();
+        RefundService service = new RefundService.Builder().config(config).build();
+        CreateRequest request = new CreateRequest();
+        request.setNotifyUrl(wechatConfig.getRefundNotifyUrl());
+        AmountReq amountReq = new AmountReq();
+        amountReq.setTotal(priceInCents);
+        amountReq.setRefund(priceInCents);
+        amountReq.setCurrency(WECHATPAY_CURRENCY_CNY);
+        request.setAmount(amountReq);
+        request.setOutTradeNo(orderId);
+        request.setOutRefundNo(SnowFlakeUtil.getId());
+        Refund refundResult = service.create(request);
+        if (refundResult.getStatus() == SUCCESS) {
             orderService.updateOrderState(Long.parseLong(orderId), OrderStateEnum.REFUNDED, null);
             return true;
         } else {
@@ -353,30 +363,6 @@ public class WxPayServiceImpl implements WxPayService {
         }
     }
 
-    /**
-     * 发起退款
-     *
-     * @param data 退款请求参数
-     * @return
-     * @throws Exception
-     */
-    public Map<String, Object> processRefund(Map<String, Object> data) throws Exception {
-        // 请求头（需要根据业务生成 Authorization Token）
-        Map<String, String> headers = new HashMap<>();
-        headers.put(HttpConstant.Authorization, getToken(String.valueOf(HttpMethod.POST), REFUNDS_URL, JSONObject.toJSONString(data)));
-        headers.put(HttpConstant.Accept, HttpConstant.Application_Json);
-        headers.put(HttpConstant.Content_Type, HttpConstant.Application_Json);
-
-        // 请求体数据
-        String jsonData = JSONObject.toJSONString(data);
-
-        // 执行 POST 请求
-        String response = httpService.doPost(REFUNDS_URL, jsonData, headers, String.valueOf(StandardCharsets.UTF_8));
-
-        // 将响应字符串解析为 Map
-        Map<String, Object> responseMap = JSONObject.parseObject(response, Map.class);
-        return responseMap;
-    }
 
     /**
      * 生成退款请求token