diff --git a/backend/meetings/models.py b/backend/meetings/models.py
index 16ec2c4f..1e690114 100644
--- a/backend/meetings/models.py
+++ b/backend/meetings/models.py
@@ -21,6 +21,7 @@ class Meeting(models.Model):
     created_at = models.DateTimeField(auto_now_add=True)
     started_at = models.DateTimeField(null=True, blank=True)
     ended_at = models.DateTimeField(null=True, blank=True)
+    expires_at = models.DateTimeField(null=True, blank=True, verbose_name="过期时间")
     
     # 主持龙虾（负责生成会议纪要）
     host_agent_id = models.CharField(max_length=100, null=True, blank=True, verbose_name='主持 Agent ID')