Computer-side method:

1. First, log in to your QQ account on the computer. After logging in, click the main menu in the lower left corner of the QQ panel.

2. Click the main menu and a pop-up menu will appear. Click Help on the menu.

3. After clicking Help, a side-pull menu will appear, and then click "My QQ Center" on the side-pull menu.

4. Click on "My QQ Center" to enter the "My QQ Center" page, and click on the "My QQ Center" page.

Strike dynamics.

5. Click Dynamic to enter the dynamic window, and click "My Dynamic" on the window.

6. Click "My Dynamic" and you will see the updated QQ personalized signature. Move the mouse over the signature you want to delete.

A delete button will appear. Just click the delete button.

Mobile phone mode:

1. Open the latest version of mobile QQ and enter "I".

2. Click on the avatar → enter "My Profile" → open "Personal Signature".

3. You can check all your current historical signatures here (friends can also see them).

4. Then slide the touch screen to the left on the target signature, and the delete button will appear.

Tip: If you can't find the entry of Personal Signature in My Profile, you need to set a signature in advance and try again.

You can see it when you go in. In addition, this function is only available on the latest version of mobile QQ, and the old version may not support it.