diff --git a/IRaCIS.Core.Application/Service/TrialSiteUser/TrialDicomAEService.cs b/IRaCIS.Core.Application/Service/TrialSiteUser/TrialDicomAEService.cs
index b0e1be07c..a29e92960 100644
--- a/IRaCIS.Core.Application/Service/TrialSiteUser/TrialDicomAEService.cs
+++ b/IRaCIS.Core.Application/Service/TrialSiteUser/TrialDicomAEService.cs
@@ -145,9 +145,21 @@ namespace IRaCIS.Core.Application.Service
 
                     await client.AddRequestAsync(new DicomCEchoRequest());
 
-                    await client.SendAsync();
+                    // 创建一个超时任务，设置超时时间为1秒
+                    var timeoutTask = Task.Delay(TimeSpan.FromSeconds(3));
+
+                    // 发送 DICOM 请求
+                    var sendTask = client.SendAsync();
+
+                    // 等待任务完成，若超时任务先完成则抛出超时异常
+                    if (await Task.WhenAny(sendTask, timeoutTask) == timeoutTask)
+                    {
+                        throw new TimeoutException("DICOM 请求超时。");
+                    }
+
 
                     find.IsTestOK = true;
+
                     await _dicomAERepository.SaveChangesAsync();
 
                     return true;