diff --git a/engine/apps/slack/models/slack_message.py b/engine/apps/slack/models/slack_message.py
index 789886e4..c6bbcff6 100644
--- a/engine/apps/slack/models/slack_message.py
+++ b/engine/apps/slack/models/slack_message.py
@@ -11,6 +11,7 @@ from apps.slack.errors import (
     SlackAPIError,
     SlackAPIFetchMembersFailedError,
     SlackAPIMethodNotSupportedForChannelTypeError,
+    SlackAPIRatelimitError,
     SlackAPITokenError,
 )
 
@@ -146,6 +147,18 @@ class SlackMessage(models.Model):
                 thread_ts=slack_message.slack_id,
                 unfurl_links=True,
             )
+        except SlackAPIRatelimitError:
+            UserNotificationPolicyLogRecord(
+                author=user,
+                type=UserNotificationPolicyLogRecord.TYPE_PERSONAL_NOTIFICATION_FAILED,
+                notification_policy=notification_policy,
+                alert_group=alert_group,
+                reason="Slack API rate limit error",
+                notification_step=notification_policy.step,
+                notification_channel=notification_policy.notify_by,
+                notification_error_code=UserNotificationPolicyLogRecord.ERROR_NOTIFICATION_IN_SLACK_RATELIMIT,
+            ).save()
+            return
         except SlackAPITokenError:
             UserNotificationPolicyLogRecord(
                 author=user,