diff --git a/electron/main/backend/install-manager.ts b/electron/main/backend/install-manager.ts
index 9744db51..fb1be474 100644
--- a/electron/main/backend/install-manager.ts
+++ b/electron/main/backend/install-manager.ts
@@ -544,9 +544,9 @@ async function runDownloadPhase(task: InstallTask) {
 
       sendStatus("downloading");
 
-      // 下载重试逻辑：共10次，5次3秒，3次5秒，2次10秒
+      // 下载重试逻辑：共10次，指数退避，首次3秒，末次1分钟
       const timeoutList = [
-        3000, 3000, 3000, 3000, 3000, 5000, 5000, 5000, 10000, 10000,
+        3000, 4500, 6500, 9000, 13000, 18000, 26000, 36000, 50000, 60000,
       ];
       let retryCount = 0;
       let downloadSuccess = false;
diff --git a/electron/main/backend/shared-installer.ts b/electron/main/backend/shared-installer.ts
index 99d80353..2c033b79 100644
--- a/electron/main/backend/shared-installer.ts
+++ b/electron/main/backend/shared-installer.ts
@@ -106,9 +106,9 @@ export const downloadPackage = async ({
 
   onStatus?.("downloading");
 
-  // 下载重试逻辑：共10次，5次3秒，3次5秒，2次10秒
+  // 下载重试逻辑：共10次，指数退避，首次3秒，末次1分钟
   const timeoutList = [
-    3000, 3000, 3000, 3000, 3000, 5000, 5000, 5000, 10000, 10000,
+    3000, 4500, 6500, 9000, 13000, 18000, 26000, 36000, 50000, 60000,
   ];
   let retryCount = 0;
   let downloadSuccess = false;