1. Log in to your qq account first, and then click the "Open System Settings" button at the bottom of the main panel.

2. Click "Open System Settings" to enter the system settings window, and click "Permission Settings" on the window.

3. Click Permission Settings, click Personal Information on the left, and then click Permission Settings under Personal Information in the right window.

4. Click Permission Settings to enter the Settings window, and set the back of all materials to "Visible only to yourself".

5. After the data is set to be visible only to yourself, click the avatar on the main panel to enter the personal data card.

6. After entering the personal data card, click the "Edit Data" button on the right of the data card.

7. Click the Edit Data button to enter the editing state, and you can delete all the contents in Personal Signature and Personal Description. Then click Save, so that your friends will be blank when viewing your information card.