diff --git a/app/main/api/internal/logic/admin_order/adminrefundorderlogic.go b/app/main/api/internal/logic/admin_order/adminrefundorderlogic.go
index 6f0a30f..dc6c170 100644
--- a/app/main/api/internal/logic/admin_order/adminrefundorderlogic.go
+++ b/app/main/api/internal/logic/admin_order/adminrefundorderlogic.go
@@ -18,11 +18,14 @@ import (
 )
 
 const (
-	PaymentPlatformAlipay     = "alipay"
-	PaymentPlatformWechat     = "wechat"
-	PaymentPlatformEasyPay    = "easypay_alipay"
-	OrderStatusPaid           = "paid"
-	RefundNoPrefix            = "refund-"
+	PaymentPlatformAlipay              = "alipay"
+	PaymentPlatformWechat              = "wechat"
+	PaymentPlatformEasyPay             = "easypay_alipay"
+	PaymentPlatformYunYinSignPay       = "yunyinSignPay"
+	PaymentPlatformYunYinSignPayWechat = "yunyinSignPay_wechat"
+	PaymentPlatformYunYinSignPayAlipay = "yunyinSignPay_alipay"
+	OrderStatusPaid                    = "paid"
+	RefundNoPrefix                     = "refund-"
 )
 
 type AdminRefundOrderLogic struct {
@@ -53,6 +56,8 @@ func (l *AdminRefundOrderLogic) AdminRefundOrder(req *types.AdminRefundOrderReq)
 		return l.handleWechatRefund(order, req)
 	case PaymentPlatformEasyPay:
 		return l.handleEasyPayRefund(order, req)
+	case PaymentPlatformYunYinSignPay, PaymentPlatformYunYinSignPayWechat, PaymentPlatformYunYinSignPayAlipay:
+		return l.handleYunYinSignPayRefund(order, req)
 	default:
 		return nil, errors.Wrapf(xerr.NewErrMsg("不支持的支付平台"), "AdminRefundOrder, 不支持的支付平台: %s", order.PaymentPlatform)
 	}
@@ -167,6 +172,80 @@ func (l *AdminRefundOrderLogic) handleEasyPayRefund(order *model.Order, req *typ
 	}, nil
 }
 
+// handleYunYinSignPayRefund 处理云印签支付退款
+func (l *AdminRefundOrderLogic) handleYunYinSignPayRefund(order *model.Order, req *types.AdminRefundOrderReq) (*types.AdminRefundOrderResp, error) {
+	// 检查云印签支付服务是否启用
+	if l.svcCtx.YunYinSignPayService == nil {
+		return nil, errors.Wrapf(xerr.NewErrCode(xerr.SERVER_COMMON_ERROR), "AdminRefundOrder, 云印签支付服务未启用")
+	}
+
+	// 查询云印签订单获取参与方ID
+	yunyinOrder, err := l.svcCtx.YunyinSignPayOrderModel.FindOneByOrderId(l.ctx, order.Id)
+	if err != nil {
+		return nil, errors.Wrapf(xerr.NewErrCode(xerr.DB_ERROR), "AdminRefundOrder, 查询云印签订单失败, 订单ID: %s, 错误: %v", order.Id, err)
+	}
+
+	// 获取参与方ID（ParticipantId 是 string 类型，需要转换为 int64）
+	var participateId int64
+	if yunyinOrder.ParticipantId != "" {
+		// 尝试将字符串转换为int64
+		if _, parseErr := fmt.Sscanf(yunyinOrder.ParticipantId, "%d", &participateId); parseErr != nil {
+			logx.Errorf("解析参与方ID失败，订单ID: %s, ParticipantId: %s, 错误: %v", order.Id, yunyinOrder.ParticipantId, parseErr)
+			// 如果解析失败，participateId 保持为 0，使用订单号退款
+		} else {
+			logx.Infof("成功解析参与方ID，订单ID: %s, ParticipantId: %s, participateId: %d", order.Id, yunyinOrder.ParticipantId, participateId)
+		}
+	}
+
+	// 调用云印签退款接口
+	refundErr := l.svcCtx.YunYinSignPayService.RefundPayeeBill(
+		l.ctx,
+		order.OrderNo,
+		participateId,
+		req.RefundAmount,
+		req.RefundReason,
+	)
+	if refundErr != nil {
+		// 云印签退款失败，创建失败记录但不更新订单状态
+		refundNo := l.generateRefundNo(order.OrderNo)
+		createErr := l.createRefundRecordOnly(order, req, refundNo, "", model.OrderRefundStatusFailed)
+		if createErr != nil {
+			logx.Errorf("创建云印签退款失败记录时出错: %v", createErr)
+		}
+		return nil, errors.Wrapf(xerr.NewErrCode(xerr.SERVER_COMMON_ERROR), "AdminRefundOrder, 云印签退款失败 err: %v", refundErr)
+	}
+
+	// 云印签退款成功，创建成功记录
+	refundNo := l.generateRefundNo(order.OrderNo)
+	// 检查是否全额退款
+	isFullRefund := req.RefundAmount >= order.Amount-0.01 // 允许1分钱的误差
+
+	var orderStatus string
+	if isFullRefund {
+		orderStatus = model.OrderStatusRefunded
+		// 更新云印签订单表的支付状态为已退款（2）
+		yunyinOrder.PayStatus = 2
+		if _, updateErr := l.svcCtx.YunyinSignPayOrderModel.Update(l.ctx, nil, yunyinOrder); updateErr != nil {
+			logx.Errorf("更新云印签订单状态失败: %v", updateErr)
+		}
+	} else {
+		// 部分退款保持已支付状态
+		orderStatus = model.OrderStatusPaid
+	}
+
+	// 云印签退款是异步的，但API返回成功表示申请已提交，标记为成功
+	err = l.createRefundRecordAndUpdateOrder(order, req, refundNo, "", orderStatus, model.OrderRefundStatusSuccess)
+	if err != nil {
+		return nil, err
+	}
+
+	return &types.AdminRefundOrderResp{
+		Status:   orderStatus,
+		RefundNo: refundNo,
+		Amount:   req.RefundAmount,
+	}, nil
+}
+
 // createRefundRecordAndUpdateOrder 创建退款记录并更新订单状态
 func (l *AdminRefundOrderLogic) createRefundRecordAndUpdateOrder(order *model.Order, req *types.AdminRefundOrderReq, refundNo, platformRefundId, orderStatus, refundStatus string) error {
 	return l.svcCtx.OrderModel.Trans(l.ctx, func(ctx context.Context, session sqlx.Session) error {