The Wushaoling Tunnel is a 21.05 km dual-bore railway tunnel in Gansu, north-west China. The east-bound bore opened on 30 March 2006. The second bore opened in August 2006. It was briefly the longest railway tunnel in China until the opening of the 27.84 km Taihang Tunnel in late 2007. In 2018, a one year reconstruction of the signaling system was started.
