1. Open the Tik Tok application and log in.
2. Select the "I" option in the navigation bar at the bottom of the homepage to enter the personal homepage.
3. Find the "Message" icon in the upper right corner of the personal homepage, and click to enter the message page.
4. Find the dialog box that needs to delete the chat record on the message page, and click Enter.
5. After entering the chat interface, find the "Chat Settings" icon (the shape of a gear) in the upper right corner, and click Enter.
6. Find the "Clear Chat History" option on the chat settings page, and click Select.
7. After the confirmation prompt pops up, click OK to delete the chat record.
Please note that deleting chat records is irreversible and cannot be restored after deletion. Please be careful. This operation will only delete the local chat record, and the chat record of the other party will not be affected.