diff --git a/MyCode.Project.Services/Implementation/PurchaseOrder/SysLoginService.cs b/MyCode.Project.Services/Implementation/PurchaseOrder/SysLoginService.cs
index 4cb9d83..4dab397 100644
--- a/MyCode.Project.Services/Implementation/PurchaseOrder/SysLoginService.cs
+++ b/MyCode.Project.Services/Implementation/PurchaseOrder/SysLoginService.cs
@@ -103,6 +103,11 @@ namespace MyCode.Project.Services.Implementation
             {
                 pwd = EncryptHelper.SHA1Hash(request.Password);
             }
+
+            if (string.IsNullOrWhiteSpace(request.SupplierId) && request.SystemType == 0)
+            {
+                throw new BaseException("供应商类型的账号必须选一个供应商");
+            }
             SysLogin entity = new SysLogin();
             if (request.Id.IsEmpty())
             {