diff --git a/app/modules/slack/slack.py b/app/modules/slack/slack.py
index 6c1cb19c..ca9c88d2 100644
--- a/app/modules/slack/slack.py
+++ b/app/modules/slack/slack.py
@@ -146,7 +146,7 @@ class Slack:
             # 发送
             result = self._client.chat_postMessage(
                 channel=channel,
-                text=message_text,
+                text=message_text[:1000],
                 blocks=blocks,
                 mrkdwn=True
             )