diff --git a/IRaCIS.Core.Application/Service/Common/TrialImageDownloadService.cs b/IRaCIS.Core.Application/Service/Common/TrialImageDownloadService.cs
index 971eef75e..cc1d910ce 100644
--- a/IRaCIS.Core.Application/Service/Common/TrialImageDownloadService.cs
+++ b/IRaCIS.Core.Application/Service/Common/TrialImageDownloadService.cs
@@ -479,6 +479,8 @@ namespace IRaCIS.Core.Application.Service
                     //建立压缩包
                     string visitFolderPath = Path.Combine(trialFolderPath, $"{visitItem.SubjectCode}_{visitItem.VisitName.Trim()}");
 
+                    var currentIndex = visitIndex;
+
                     downloadJobs.Add(new DownloadJob()
                     {
                         Name = $"{visitItem.SubjectCode}_{visitItem.VisitName.Trim()}_Zip",
@@ -487,7 +489,7 @@ namespace IRaCIS.Core.Application.Service
 
                         Action = async () =>
                         {
-                            Log.Logger.Warning($"[{visitIndex}] {DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss")}开启另外线程压缩访视：{visitItem.SubjectCode} {visitItem.VisitName} {visitItem.VisitNum}");
+                            Log.Logger.Warning($"[{currentIndex}] {DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss")}开启另外线程压缩访视：{visitItem.SubjectCode} {visitItem.VisitName} {visitItem.VisitNum}");
 
                             string zipPath = visitFolderPath + ".zip";