diff --git a/telegram_bot.py b/telegram_bot.py
index 2e84739..fb956c5 100644
--- a/telegram_bot.py
+++ b/telegram_bot.py
@@ -2416,8 +2416,15 @@ class ProvisionerBot:
                 skipped.append(key)
                 continue
 
-            # 测试 Key 是否有效
-            success, msg = gptmail_service.test_api_key(key)
+            # 测试 Key 是否有效 (使用线程池避免阻塞，带超时)
+            try:
+                success, msg = await asyncio.wait_for(
+                    asyncio.to_thread(gptmail_service.test_api_key, key),
+                    timeout=15
+                )
+            except asyncio.TimeoutError:
+                invalid.append(key)
+                continue
 
             if not success:
                 invalid.append(key)