The Beijing–Guangzhou–Shenzhen–Hong Kong high-speed railway or Jingguangshengang high-speed railway from its Chinese name is a high-speed railway corridor of the CRH passenger service, connecting Beijingxi station in Beijing and Futian station in Shenzhen, Guangdong in less than nine hours of travel time. It is 2,230 kilometres (1,390 mi) long, and is the only Chinese high-speed railway to cross a border that requires immigration and customs clearance. The existing, conventional Jingguang railway runs largely parallel to the line.

Beijingxi railway station, colloquially referred to as West Station, is located in western Beijing's Fengtai District. Opened in early 1996 after three years of construction, it was the largest railway station in Asia with an area of 510,000 m2 (5,500,000 sq ft), before being surpassed by Shanghai Hongqiao railway station in platform capacity. The station serves in average 150,000–180,000 passengers per day with a maximum of 400,000 people per day. It was expanded during the 2000s decade, during which several platforms were added. It also has a fairly large number of car-parking spaces.