QQ space concerns, how to cancel the SMS notification about friends' visit?

This is normal. If someone leaves a message in your space, it will automatically prompt you. If your friend's space is updated, your personal center will prompt you to check it out. If you don't want to appear, you can add people who don't show friends' dynamics in the friend settings of the personal center.

The information center has a setting. . You can set a friend update space without prompting.