1. First, turn on your mobile phone, click the WeChat shortcut, enter WeChat, and click "Me".

2. After clicking "Me", several application options and account information will appear in the interface. Click on "wallet" here.

3. After entering, there will be some items related to payment. Here is a choice of bank cards. Click the bank card.

4. After entering the bank card interface, click "Add Bank Card" to pay attention to your bank card security.

5. Verify the payment password, and then enter the interface of adding bank card, and enter the name and card number of the cardholder of the bank card.