To cancel the real-name authentication of Xiamen Tourism Annual Card, you can follow the following steps:

1. Open the Xiamen Tourism Year Card official website and log in the account.

2. Find the My Account option at the top of the page, and then click Enter.

3. On the "My Account" page, find the column of "Real Name Authentication" and click the "Cancel Authentication" button.

4. You will be prompted to confirm the cancellation of real-name authentication, and click "OK". The system will automatically cancel the real-name authentication.

The above steps are for reference only. If the real-name authentication cannot be successfully cancelled, it is recommended to contact Xiamen Tourism Year Card Customer Service for further assistance.