diff --git a/konabot/plugins/sksl/__init__.py b/konabot/plugins/sksl/__init__.py
index c112672..494134e 100644
--- a/konabot/plugins/sksl/__init__.py
+++ b/konabot/plugins/sksl/__init__.py
@@ -31,6 +31,8 @@ async def _(
         raise BotExceptionMessage("时长太短或帧率太小，没有帧被渲染")
     if fps_ * duration_ > 100:
         raise BotExceptionMessage("太多帧啦！试着缩短一点时间吧！")
+    if width_ > 640 or height_ > 640:
+        raise BotExceptionMessage("最大支持 640x640 啦！不要太大啦！")
 
     code = code.strip("\"").strip("'")