The Beijing–Tianjin intercity railway is a Chinese high-speed railway that runs 117 kilometres (72.7 mi) line between Beijing and Tianjin. Designed for passenger traffic only, the Chinese government built the line to accommodate trains traveling at a maximum speed of 350 km/h (217 mph), and currently carries CRH high-speed trains running speeds up to 350 km/h (217 mph) since August 2018.

The high-speed rail (HSR) network in the People's Republic of China (PRC) is the world's longest and most extensively used – with a total length of 45,000 kilometres (28,000 mi) by the end of 2023. The HSR network encompasses newly built rail lines with a design speed of 200–380 km/h (120–240 mph). China's HSR accounts for two-thirds of the world's total high-speed railway networks. Almost all HSR trains, track and service are owned and operated by the China Railway Corporation under the brand China Railway High-speed (CRH).