外国护照购票官方网站
https://www.12306.cn/en

外国护照购票须知
https://www.12306.cn/en/faq.html

下面是常见的三个问题：
What ID documents are accepted by 12306.cn English website?
On 12306.cn English website, only valid foreign passports useable according to related regulations are accepted.

How to print E-ticket itinerary sheet?
After buying railway E-tickets on 12306.cn, passengers can print or download the "itinerary sheet" on the website, or have it printed at the designated ticket counters or automatic ticketing machines at the stations.

How does passenger "to be verified" with foreign passports in the My Passengers List pick up paper ticket?
After buying tickets for a passenger "to be verified" with foreign passports in the My Passengers List on 12306.cn, you need to take the valid original passport used to buy the ticket to the ticket counter at the station for ID verification. When the status has been changed to "ready to be verified," you can pick up the paper ticket.