The method of binding a credit card on Taobao is as follows:

1. First, open the Taobao App and enter the "My Taobao" page.

2. Secondly, click "My Alipay" to enter the Alipay page.

3. Then, on the Alipay page, click the "Bank Card" option.

4. Finally, click "Add Bank Card" and enter the credit card information as prompted, such as card number, expiration date, security code, etc.