diff --git a/electron/electron.js b/electron/electron.js
index 14c113adf..ff54a139d 100644
--- a/electron/electron.js
+++ b/electron/electron.js
@@ -289,10 +289,15 @@ function preCreateChildWindow() {
         }
     });
 
+    // 关闭事件
     browser.addListener('closed', () => {
         preloadWindow = null;
     })
 
+    // 设置 UA
+    const originalUA = browser.webContents.session.getUserAgent() || browser.webContents.getUserAgent()
+    browser.webContents.setUserAgent(originalUA + " SubTaskWindow/" + process.platform + "/" + os.arch() + "/1.0");
+
     utils.loadUrlOrFile(browser, devloadUrl, 'preload')
 
     preloadWindow = browser;