1. Open the Alipay client and enter the account password to log in.

2. Click "My" on the homepage to enter the personal center page.

3. Click the "Bank Card" option, and select the bank card to cancel the express payment.

4. Find the "Manage" button under the selected bank card and click.

5. Find the option of "Close Fast Payment" in the pop-up settings page and confirm.

6. Select the reason for closing fast payment in the pop-up prompt box, enter the correct payment password, and complete the unbinding. At this point, the fast payment relationship between the bank card and Alipay was cancelled.