diff --git a/Myshipping.Application/Service/BookingOrder/BookingOrderService.cs b/Myshipping.Application/Service/BookingOrder/BookingOrderService.cs
index 9f7db1af..9f20c82d 100644
--- a/Myshipping.Application/Service/BookingOrder/BookingOrderService.cs
+++ b/Myshipping.Application/Service/BookingOrder/BookingOrderService.cs
@@ -268,14 +268,14 @@ namespace Myshipping.Application
 
             if (input.ParentId == 0)
             {
-                if (string.IsNullOrWhiteSpace(input.HBLNO))
+                if (!string.IsNullOrWhiteSpace(input.HBLNO))
                 {
                     throw Oops.Bah("主单不需要填写分单号");
                 }
             }
             else
             {
-                if (string.IsNullOrWhiteSpace(input.MBLNO))
+                if (!string.IsNullOrWhiteSpace(input.MBLNO))
                 {
                     throw Oops.Bah("请填写主提单号");
                 }