1. Open QQ first and click "Contact".
2. Click on the contact to jump to the following interface, and hold down the following grouping with your finger for a long time.
3. Long press the following groups with your fingers. If you don't let go, a window will pop up and click "Group Management".
4. Click on the group management to jump to the following interface, and click on the friend group you want to rename.
5. Click on the friend group to be renamed, change the name, and click Finish.