On this page
China is renumbering its passenger trains this winter. Conventional trains switch in late November 2026 and bullet trains in late December 2026, and some letters change meaning: after the switch, a T or K number no longer means an older conventional sleeper train. If you are planning a trip that runs past these dates, search by route and date instead of copying a train number from an old guide or forum post, and check the train number printed on your issued ticket against the station screens on the day.
Official announcement: China Railway via Xinhua. Last checked 2026-10-30.
What is changing, and when?
China Railway is changing train numbers in two batches: conventional passenger trains and tourist trains in late November 2026, then high-speed, power-concentrated, intercity and suburban trains in late December 2026.
China Railway has only said "late November" and "late December" so far. Some railway-bureau media have reported specific days for the first batch, but neither China Railway nor 12306 had published a date notice when we checked on 30 October. Treat the switch days as a window, not a fixed date, and look at 12306 for the exact day if your trip falls near the end of November or the end of December.
At the first switch, renumbered trains keep their current routes and timetables. Your seat, your departure station and your departure time should not change just because the number does. Onboard services such as quiet carriages and online meal ordering also continue.
What will the new letters mean?
Under the new rules, X marks Fuxing trains with a top speed above 350 km/h, G marks Fuxing trains with a top speed of 350 km/h, T marks bullet trains with a top speed of 300 km/h, and K marks bullet trains with a top speed of 200 to 250 km/h.
D marks power-concentrated bullet trains, C intercity bullet trains and S suburban trains; Z, N and V mark conventional trains with top speeds of 160, 140 and 120 km/h, and Y marks conventional tourist trains.
China Railway says X is mainly reserved for future, faster Fuxing services, so do not expect to see many X trains straight away.
The practical point for visitors: today G, D and C are bullet trains, while T, K and Z are older conventional trains, many of them overnight sleepers. Under the new rules T and K become bullet-train letters, and conventional trains move to Z, N and V. A blog post that says "take the K train for a cheap sleeper" will be out of date.
Will my booked ticket show the old number?
12306 shows the new train numbers within the 15-day presale period, counted from the day each renumbered train first runs.
That means tickets for trains running after a switch day are normally sold with the new number already on them. Tickets bought earlier for travel before the switch keep the old number. If your booking was made through an agent, open the issued ticket or the 12306 order and read the train number there, not the number in your first search or a confirmation email from before issue.
How do I avoid booking the wrong train?
- Search by departure station, arrival station and date. Do not search for a train number you found in a guide written before November 2026.
- Compare the full station names. Big cities have several stations, and the renumbering does not change which station a train uses.
- Once the ticket is issued, note the train number, carriage and seat, and the departure time. Those, plus your passport, are what you will be checked against.
- On the day, find your train on the departure screens by time and destination as well as number. If the screen and your ticket disagree, ask at the station service desk before going through the gates.
For the booking steps with a foreign passport, see How to Book China Trains With a Foreign Passport. For what happens at the station, see China Train Station Boarding.
What about Christmas and New Year trips?
The bullet-train batch lands in late December, right when many visitors travel between Beijing, Shanghai and other cities for the holidays. If your trip crosses that window, check the ticket again a day or two before departure and keep the 12306 order or agent confirmation open on your phone. Holiday trains also sell out faster, so plan your dates early; our China holiday travel planning guide covers the busy periods.
Where can I check official updates?
China Railway says passengers can check the new numbers on the 12306 website and app and through station notices. The English 12306 site and its ticketing FAQ are the official reference for foreign passport holders. We will update this page when China Railway publishes the exact switch dates.
