Wu Kai Sha (Chinese: 烏溪沙站) is the northeastern terminus on the . The railway station is located near Sha On Street and serves residential areas like Lee On Estate or Kam Lung Court; it also serves the well-known Li Po Chun United World College and various other secondary and primary schools. It was originally named as "Lee On Station" before the Ma On Shan Line operated since it was located at the east of Lee On Estate.
| P Platforms | Platform 1 | towards Tai Wai |
| Platform 2 | towards Tai Wai | |
| C Concourse | Concourse | Exits, transport interchange, toilets |
| Customer services, vending machines, MTR shops | ||
The nearby Lee On Estate bus terminus also provides interchange between the Ma On Shan Rail and the following bus routes: