diff --git a/IRaCIS.Core.Application/Helper/OSSService.cs b/IRaCIS.Core.Application/Helper/OSSService.cs
index 707763b4e..2d8ad841b 100644
--- a/IRaCIS.Core.Application/Helper/OSSService.cs
+++ b/IRaCIS.Core.Application/Helper/OSSService.cs
@@ -112,6 +112,8 @@ public class AliyunOSSTempToken
 
     public string PreviewEndpoint { get; set; }
 
+    public string DownloadEndPoint => EndPoint.Insert(EndPoint.IndexOf("//") + 2, BucketName + ".");
+
 }
 
 [LowerCamelCaseJson]