West Kowloon station, also known as Hong Kong West Kowloon, is the southern terminus of and the only station on the Hong Kong section of the Guangshengang XRL. The station connects to China's high-speed rail (HSR) network across the border through dedicated tunnels and includes a Mainland Port Area where the laws of (Mainland) China are enforced. It was constructed by the MTR Corporation Limited as the project manager commissioned by the Hong Kong Government, through subcontractors.

The Hong Kong section of the Guangzhou–Shenzhen–Hong Kong Express Rail Link is a 26 km (16 mi) long stretch of high-speed rail that runs along a dedicated underground rail corridor linking Hong Kong to mainland China. It is one of the most expensive infrastructure undertakings in Hong Kong's history. The line connects Kowloon with the high-speed rail network of China at Futian station in the technology hub of Shenzhen, then running north towards the commercial/ political hub of Guangzhou. As of August 2023 the line has an average ridership of 79,000 passengers a day.