diff --git a/Windows/CS/Framework4.0/Updater/src/main.rs b/Windows/CS/Framework4.0/Updater/src/main.rs
index 5648086..d82658c 100644
--- a/Windows/CS/Framework4.0/Updater/src/main.rs
+++ b/Windows/CS/Framework4.0/Updater/src/main.rs
@@ -1429,8 +1429,9 @@ fn notify_app_upgrade(app_name: &str, current_ver: &str, latest_ver: &str, debug
         }
 
         // 向每个运行中的进程发送升级确认
+        // 管道名称格式：EasyTest_{pid}（与 EasyTest 启动的命名管道一致）
         for pid in pids {
-            let pipe_name = format!("\\\\.\\pipe\\{}_{}", app_name, pid);
+            let pipe_name = format!("\\\\.\\pipe\\EasyTest_{}", pid);
             let msg = format!(
                 r#"{{"Type":"UpgradeConfirm","Data":{{"AppName":"{}","CurrentVer":"{}","LatestVer":"{}"}}}}"#,
                 app_name, current_ver, latest_ver