diff --git a/internal/logic/public/user/unbindDeviceLogic.go b/internal/logic/public/user/unbindDeviceLogic.go
index 4139438..327ae9e 100644
--- a/internal/logic/public/user/unbindDeviceLogic.go
+++ b/internal/logic/public/user/unbindDeviceLogic.go
@@ -202,8 +202,15 @@ func (l *UnbindDeviceLogic) logoutUnbind(userInfo *user.User, device *user.Devic
 		}
 	}
 
-	// 6. Kick 设备（缓存已清，重连时 FindOne 会查到最新数据）
+	// 6. Kick 设备 + 更新在线状态
 	l.svcCtx.DeviceManager.KickDevice(device.UserId, device.Identifier)
+	device.Online = false
+	if updateErr := l.svcCtx.UserModel.UpdateDevice(l.ctx, device); updateErr != nil {
+		l.Errorw("update device online status failed",
+			logger.Field("device_id", device.Id),
+			logger.Field("error", updateErr.Error()),
+		)
+	}
 
 	// 7. 清除该用户所有 session（旧 token 全部失效）
 	l.clearAllSessions(userInfo.Id)