diff --git a/CHANGELOG.md b/CHANGELOG.md
index 008e634..5185109 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [3.4.4] - 2026-01-10
+
+### 🐛 Fixed
+- **未捕获的超时错误**
+  - 修复因未捕获的超时错误导致的程序崩溃
+
 ## [3.4.3] - 2025-12-26
 
 ### ✨ Added
diff --git a/src/backend/utils/error.js b/src/backend/utils/error.js
index 257914b..9d243cb 100644
--- a/src/backend/utils/error.js
+++ b/src/backend/utils/error.js
@@ -57,6 +57,13 @@ export function normalizePageError(err, meta = {}) {
         logger.error('适配器', '页面状态无效', meta);
         return { error: '页面状态无效，请重新初始化', code: ADAPTER_ERRORS.PAGE_INVALID, retryable: true };
     }
+    // API_TIMEOUT: waitApiResponse 内部转换后的超时错误
+    if (err.message?.startsWith('API_TIMEOUT:')) {
+        const timeoutMsg = err.message.replace('API_TIMEOUT: ', '');
+        logger.error('适配器', timeoutMsg, meta);
+        return { error: timeoutMsg, code: ADAPTER_ERRORS.TIMEOUT_ERROR, retryable: true };
+    }
+    // 兼容原生 TimeoutError (其他地方抛出的)
     if (err.name === 'TimeoutError' || err.message?.includes('Timeout')) {
         logger.error('适配器', '请求超时', meta);
         return { error: '请求超时 (120秒), 请检查网络或稍后重试', code: ADAPTER_ERRORS.TIMEOUT_ERROR, retryable: true };
diff --git a/src/backend/utils/page.js b/src/backend/utils/page.js
index 62f7e76..5ff344e 100644
--- a/src/backend/utils/page.js
+++ b/src/backend/utils/page.js
@@ -337,6 +337,14 @@ export async function waitApiResponse(page, options = {}) {
         }
 
         return response;
+    } catch (e) {
+        // 检测超时错误，转换为标准错误类型
+        if (e.name === 'TimeoutError' || e.message?.includes('Timeout')) {
+            const timeoutSec = Math.round(timeout / 1000);
+            throw new Error(`API_TIMEOUT: 等待响应超时 (${timeoutSec}秒)`);
+        }
+        // 其他错误直接重新抛出（如 PAGE_CLOSED, PAGE_CRASHED 等）
+        throw e;
     } finally {
         pageWatcher.cleanup();
     }