The steps are as follows:

1. First turn on the phone, enter the main page of the Apple phone and click the Settings button.

2. Click "wallet and apple pay" on the settings page.

3. Then click "Add Credit Card or Debit Card" in the settings options.

4. Then a brief introduction to Apple Pay will appear, just click Next.

5. Place the card into the box according to the prompts.

6. After completing the "Name" and "Card Number", click "Next" in the upper right corner.

7. Then enter the validity period and security code (credit card required).

8. Then the "Terms and Conditions" page will appear, click "Agree" in the lower right corner.

9. Then the page "Showing Card Adding" will appear, please wait.

10. Then click "Next" in the upper right corner.

11. Then a verification code will be sent to the mobile phone number bound to your bank card. Enter the "verification code" received. Click "Next" in the upper right corner.

12. When you are prompted that the card has been activated, click "Done" in the upper right corner.