To buy Qinghai-Tibet train tickets, you need to email your valid passport photo copy to our Tibet travel agency and once the tickets are on sales (normally at least 30 to 60 days before train departure date), we will help you buy the train tickets. While to be able to get the paper tickets and board the train from mainland China to Tibet, you will need a valid physical passport, a Chinese visa and a Tibet Tourism Bureau (TTB) permit (original or photo copies). The original copy of TTB permit is needed when you board the train to Tibet from Chongqing, Xian and Lanzhou, however except for three cities, the printed photocopies of permits are fine for you to claim the train tickets and board the train from Beijing, Shanghai, Chengdu, Guangzhou, etc. Your Tibet TripAdvisor will reconfirm to you at least 5-10 days before your arrival date in Tibet. Please follow the link to learn more about Tibet Travel Permits Documents.