The CRH3 Hexie is a version of the Siemens Velaro high-speed train used in China on the Beijing–Tianjin intercity railway line, Wuhan-Guangzhou Passenger Dedicated Line, Zhengzhou-Xi'an Passenger Dedicated Line and the Shanghai–Nanjing intercity railway. It is capable of service speed of 380 km/h (236 mph) as the very similar Velaro E used in Spain, but, similarly to the Sapsan, it is 300 mm (11.8 in) wider to take advantage of a more generous structure gauge and thus be able to fit in more seats in a 2+3 layout.

Hexie, also known as the CRH series EMU, is an umbrella term for the multiple unit high-speed and higher-speed trains operated by China Railway under the China Railway High-speed brand. All series of Hexie are based on foreign-developed technology and later manufactured locally in China through technology transfer licenses, with the ultimate goal of China acquiring the know-how and capability to produce high-speed rail trains.