diff --git a/mt-pay/src/main/java/com/mtkj/mtpay/service/CustomerOrderService.java b/mt-pay/src/main/java/com/mtkj/mtpay/service/CustomerOrderService.java
index 1c8e796..905548d 100644
--- a/mt-pay/src/main/java/com/mtkj/mtpay/service/CustomerOrderService.java
+++ b/mt-pay/src/main/java/com/mtkj/mtpay/service/CustomerOrderService.java
@@ -28,5 +28,20 @@ public interface CustomerOrderService {
      * @return 订单响应
      */
     CustomerOrderResponseDTO getOrderById(Long id);
+    
+    /**
+     * 更新订单支付状态
+     * @param orderNo 订单号
+     * @param paymentStatus 支付状态
+     * @param paymentOrderId 支付订单ID（可选）
+     */
+    void updatePaymentStatus(String orderNo, String paymentStatus, Long paymentOrderId);
+    
+    /**
+     * 更新订单状态
+     * @param orderNo 订单号
+     * @param status 订单状态
+     */
+    void updateOrderStatus(String orderNo, String status);
 }
 
diff --git a/mt-pay/src/main/java/com/mtkj/mtpay/service/impl/CustomerOrderServiceImpl.java b/mt-pay/src/main/java/com/mtkj/mtpay/service/impl/CustomerOrderServiceImpl.java
index 237cd61..db9fbe4 100644
--- a/mt-pay/src/main/java/com/mtkj/mtpay/service/impl/CustomerOrderServiceImpl.java
+++ b/mt-pay/src/main/java/com/mtkj/mtpay/service/impl/CustomerOrderServiceImpl.java
@@ -137,5 +137,49 @@ public class CustomerOrderServiceImpl implements CustomerOrderService {
         BeanUtils.copyProperties(order, response);
         return response;
     }
+    
+    @Override
+    public void updatePaymentStatus(String orderNo, String paymentStatus, Long paymentOrderId) {
+        log.info("更新订单支付状态，订单号: {}, 支付状态: {}, 支付订单ID: {}", 
+                orderNo, paymentStatus, paymentOrderId);
+        LambdaQueryWrapper<CustomerOrder> queryWrapper = new LambdaQueryWrapper<>();
+        queryWrapper.eq(CustomerOrder::getOrderNo, orderNo);
+        CustomerOrder order = customerOrderMapper.selectOne(queryWrapper);
+        
+        if (order == null) {
+            log.warn("订单不存在，订单号: {}", orderNo);
+            throw new BusinessException(ResultCode.DATA_NOT_FOUND, "订单不存在");
+        }
+        
+        order.setPaymentStatus(paymentStatus);
+        if (paymentOrderId != null) {
+            order.setPaymentOrderId(paymentOrderId);
+        }
+        
+        // 如果支付成功，更新订单状态为已支付
+        if ("PAID".equals(paymentStatus)) {
+            order.setStatus("PAID");
+        }
+        
+        customerOrderMapper.updateById(order);
+        log.info("订单支付状态更新成功，订单号: {}", orderNo);
+    }
+    
+    @Override
+    public void updateOrderStatus(String orderNo, String status) {
+        log.info("更新订单状态，订单号: {}, 状态: {}", orderNo, status);
+        LambdaQueryWrapper<CustomerOrder> queryWrapper = new LambdaQueryWrapper<>();
+        queryWrapper.eq(CustomerOrder::getOrderNo, orderNo);
+        CustomerOrder order = customerOrderMapper.selectOne(queryWrapper);
+        
+        if (order == null) {
+            log.warn("订单不存在，订单号: {}", orderNo);
+            throw new BusinessException(ResultCode.DATA_NOT_FOUND, "订单不存在");
+        }
+        
+        order.setStatus(status);
+        customerOrderMapper.updateById(order);
+        log.info("订单状态更新成功，订单号: {}", orderNo);
+    }
 }
 
diff --git a/mt-pay/src/main/resources/application-dev.yml b/mt-pay/src/main/resources/application-dev.yml
index a24bad5..9f7c9b7 100644
--- a/mt-pay/src/main/resources/application-dev.yml
+++ b/mt-pay/src/main/resources/application-dev.yml
@@ -65,3 +65,14 @@ pingpong:
   gateway: https://sandbox-acquirer-payment.pingpongx.com
   mode: sandbox
 
+# PayPal支付配置（开发环境使用沙箱）
+paypal:
+  # PayPal Client ID（API密钥）
+  client-id: AdGYUZpvLuHR30dybOApvM-RNB1pVKtd74SVfh-6TK52xV-1JEBddHVMCWuDdyyHri4DXd4kABBi7Icb
+  # PayPal Client Secret（密钥）
+  client-secret: ENblspyRmwsOU_PWFurlhEYUF5Da6aYKl0pjK4ehm7p3R5aSqvbpaF_YsIIs8v0ty1c9WJu15XP-Fe_1
+  # 环境模式：sandbox（沙箱）或 production（生产）
+  mode: sandbox
+  # 是否启用PayPal支付
+  enabled: true
+