1. Find the "Ctrip Type" application on the mobile phone desktop and click Open.

2. In the Ctrip type application interface, open my interface and click "My Wallet".

3. Find the "Bank Card" option in my wallet interface and click.

4. Click "Add Bank Card" in my bank card interface.

5. Enter the bank card number and click Next.

6. After that, enter the mobile phone verification code and click the "Bind Bank Card" option below.