diff --git a/yudao-module-pay/yudao-module-pay-server/src/main/java/cn/iocoder/yudao/module/pay/dal/dataobject/order/PayOrderDO.java b/yudao-module-pay/yudao-module-pay-server/src/main/java/cn/iocoder/yudao/module/pay/dal/dataobject/order/PayOrderDO.java
index 4eea1cc4e..499c85c27 100644
--- a/yudao-module-pay/yudao-module-pay-server/src/main/java/cn/iocoder/yudao/module/pay/dal/dataobject/order/PayOrderDO.java
+++ b/yudao-module-pay/yudao-module-pay-server/src/main/java/cn/iocoder/yudao/module/pay/dal/dataobject/order/PayOrderDO.java
@@ -136,7 +136,7 @@ public class PayOrderDO extends BaseDO {
     /**
      * 渠道用户编号
      *
-     * 例如说，微信 openid、支付宝账号
+     * 例如说，微信 openid、支付宝 buyerId(buyerOpenId)
      */
     private String channelUserId;
     /**
diff --git a/yudao-module-pay/yudao-module-pay-server/src/main/java/cn/iocoder/yudao/module/pay/framework/pay/core/client/impl/alipay/AbstractAlipayPayClient.java b/yudao-module-pay/yudao-module-pay-server/src/main/java/cn/iocoder/yudao/module/pay/framework/pay/core/client/impl/alipay/AbstractAlipayPayClient.java
index 15540a9f3..21a219841 100644
--- a/yudao-module-pay/yudao-module-pay-server/src/main/java/cn/iocoder/yudao/module/pay/framework/pay/core/client/impl/alipay/AbstractAlipayPayClient.java
+++ b/yudao-module-pay/yudao-module-pay-server/src/main/java/cn/iocoder/yudao/module/pay/framework/pay/core/client/impl/alipay/AbstractAlipayPayClient.java
@@ -4,6 +4,7 @@ import cn.hutool.core.bean.BeanUtil;
 import cn.hutool.core.date.LocalDateTimeUtil;
 import cn.hutool.core.lang.Assert;
 import cn.hutool.core.map.MapUtil;
+import cn.hutool.core.text.CharSequenceUtil;
 import cn.hutool.core.util.StrUtil;
 import cn.hutool.http.HttpUtil;
 import cn.iocoder.yudao.framework.common.util.json.JsonUtils;
@@ -92,9 +93,12 @@ public abstract class AbstractAlipayPayClient extends AbstractPayClient<AlipayPa
             status = PayOrderStatusEnum.REFUND.getStatus();
         }
         Assert.notNull(status, (Supplier<Throwable>) () -> {
-            throw new IllegalArgumentException(StrUtil.format("body({}) 的 trade_status 不正确", body));
+            throw new IllegalArgumentException(CharSequenceUtil.format("body({}) 的 trade_status 不正确", body));
         });
-        return PayOrderRespDTO.of(status, bodyObj.get("trade_no"), bodyObj.get("seller_id"), parseTime(params.get("gmt_payment")),
+        // https://opendocs.alipay.com/open/00dn78?pathHash=fef00e6d#%E5%BC%82%E6%AD%A5%E9%80%9A%E7%9F%A5%E5%8F%82%E6%95%B0
+        // buyer_id（buyer_open_id）买家支付宝用户号，seller_id 卖家支付宝用户号
+        String channelUserId = CharSequenceUtil.nullToDefault(bodyObj.get("buyer_open_id"), bodyObj.get("buyer_id"));
+        return PayOrderRespDTO.of(status, bodyObj.get("trade_no"), channelUserId, parseTime(params.get("gmt_payment")),
                 bodyObj.get("out_trade_no"), body);
     }