diff --git a/YLErpDAL/Modules/SuperviseReportModule/SAC/Service/ReportService.cs b/YLErpDAL/Modules/SuperviseReportModule/SAC/Service/ReportService.cs
index a49bbeaf..a2ed98dc 100644
--- a/YLErpDAL/Modules/SuperviseReportModule/SAC/Service/ReportService.cs
+++ b/YLErpDAL/Modules/SuperviseReportModule/SAC/Service/ReportService.cs
@@ -336,9 +336,20 @@ namespace YLErp.Modules.SuperviseReportModule.SAC.Service
                             Directory.CreateDirectory(targetPath);
                         }
                         targetPath = Path.Combine(targetPath, fileInfo.FileTag + ".zip");
+                        // 先记录源 ZIP 文件的修改时间
+                        DateTime sourceLastWriteTime = File.GetLastWriteTimeUtc(absPath);
+                        LogFactory.GetLogger("SentReport-SaveDb").Info($"zip文件的最后修改时间:{sourceLastWriteTime.ToString("yyyy-mm-dd HH:mm:dd:fff")}");
+                        LogFactory.GetLogger("SentReport-SaveDb").Info("准备复制zip文件");
+                        // 复制文件
                         File.Copy(absPath, targetPath);
+                        // 强制设置目标 ZIP 文件的修改时间与源文件一致
+                        File.SetLastWriteTimeUtc(targetPath, sourceLastWriteTime);
+                        LogFactory.GetLogger("SentReport-SaveDb").Info($"准备生成.ok文件");
+                        Thread.Sleep(1000);
                         File.Create(absPath + ".ok").Close();
+                        LogFactory.GetLogger("SentReport-SaveDb").Info($"准备复制.ok文件");
                         File.Copy(absPath + ".ok", targetPath + ".ok");
+                        LogFactory.GetLogger("SentReport-SaveDb").Info($"复制.ok文件完成");
                     }
                     else
                     {