Shing Mun Tunnels connects the new towns of Tsuen Wan to the west and Sha Tin in the eastern New Territories of Hong Kong. It is part of . Opened in 1990, it is made up of two sections, rach with twin 2-lane tunnels . The westerly pair passes through Ma Tsz Keng near Shing Mun Reservoir, where it gets its name from; the easterly pair passes through Cham Shan and is linked to the westerly pair by two viaducts over Lower Shing Mun Reservoir. The toll plaza and bus interchange is located outside the Tsuen Wan end of the tunnel.
The tunnel leads to Cheung Pei Shan Road and connects Wo Yi Hop Interchange in Tsuen Wan, and Shing Mun Tunnel Road in the east which links Tai Wai Road and ends at Tai Po Road.