diff --git a/internal/service/order/service.go b/internal/service/order/service.go
index 1727d86..eb40a30 100644
--- a/internal/service/order/service.go
+++ b/internal/service/order/service.go
@@ -1069,9 +1069,13 @@ func (s *Service) List(ctx context.Context, req *dto.OrderListRequest, buyerType
 		PageSize: pageSize,
 	}
 
-	filters := map[string]any{
-		"buyer_type": buyerType,
-		"buyer_id":   buyerID,
+	filters := map[string]any{}
+	// 仅代理用户需要限定买家范围；平台/超管不加限制，可查看所有订单
+	if buyerType != "" {
+		filters["buyer_type"] = buyerType
+	}
+	if buyerID != 0 {
+		filters["buyer_id"] = buyerID
 	}
 	if req.PaymentStatus != nil {
 		filters["payment_status"] = *req.PaymentStatus