1. Turn on the power of the mobile phone, select "Railway12306" app on the main page, and click to enter;
2. Enter the departure place and arrival place, select the departure time, and click Query;
3. Click to select the shift to be purchased;
4. Select passengers;
5. Click Add Passenger Information;
6. Enter the necessary information of passengers and confirm the addition;
7. Select the bottom of the page to submit the order;
8. If the order is submitted successfully, select the lower right corner to pay immediately;
9. Select the payment method, submit the payment, and book the ticket successfully.