According to the official information released by 12306, we can know.
Relevant regulations on student tickets:
I. Relevant provisions on the sale of student tickets:
1. Students and graduate students studying in ordinary institutions of higher learning (including private institutions of higher learning that have been approved to carry out academic education), military academies, primary and secondary schools and technical schools, who have no wage income and whose family residence and school are not in the same city, will attend institutions of higher learning and secondary vocational schools at their own expense. You can buy student tickets at the local station between the college and your home address four times a year during your school stay. Generally, tickets are purchased through students' student ID cards. The first time you buy a student discount ticket every year, you need to go to the station to bind and activate your student discount qualification. If the student ID card is accidentally lost, it should be reissued in time, or you can buy a student ticket through the school's institutional information.
1. Freshmen can buy a student ticket with the admission notice of the institution (only the original is valid). Freshmen use the magnetic chip of student ID card to buy student tickets. If you buy a student ticket with a certificate, you should stamp the name of the station on the certificate.
3. When the student institution is relocated or adjusted, you can also buy student tickets from home to the new institution with the school certificate and student discount card. The change of students' home address under the new policy can be reported to the specific departments of colleges and universities for revision. The current regulations are still relatively humanized, and any changes can be adjusted and revised to ensure the smooth passage of students.
Overseas Chinese students and students from Hong Kong, Macao and Taiwan shall be handled in accordance with the above provisions. You can sell it to the border post when you get home. You can sell student tickets four times a year if you go sightseeing in other parts of the country or visit relatives and friends without going home. The station where the school is located and the return station are stamped with the station name stamp to record the number of tickets sold. Now the system background will automatically record the number of student tickets purchased by students.