1, open the QQ music application, and click the Settings button in the upper right corner to enter the Settings page.

2. In the settings page, find the "account and equipment" option, and click to enter the account and equipment page.

3. On the account and equipment page, look for the option of "National karaoke" and click Enter.

4. In the national karaoke options, find the option of "logout" or "cancel synchronization" and click Enter.

5. You will be prompted to confirm the cancellation of synchronization, and click "OK" to confirm the cancellation of the national karaoke account.

6. After waiting for a moment, the system will automatically clear the synchronization information and successfully cancel the national karaoke account synchronization.