China has the world’s longest high-speed railway network.
China’s high-speed rail expansion began with the Qinhuangdao–Shenyang Passenger Railway in 2003 and accelerated after the Beijing–Tianjin intercity line opened in 2008. The network now links most major Chinese cities with dedicated passenger lines and upgraded conventional routes.
China’s system is often confused with the world’s fastest single train or longest individual railway. Those are different measurements: network length counts the combined extent of high-speed routes, while a train’s speed concerns a vehicle or service. Chinese trains commonly operate at 250 or 350 km/h, depending on the route and timetable.
The network’s scale reflects a national transport strategy focused on connecting dense urban regions, reducing journey times, and shifting passengers from air and conventional rail travel.