Ochiai Station is served by the Tokyo Metro Tozai Line.

The station consists of an island platform serving two tracks.

The station facilities were inherited by Tokyo Metro after the privatization of the Teito Rapid Transit Authority (TRTA) in 2004.

[1] In fiscal 2013, the station was 116th busiest on the Tokyo Metro network with an average of 24,035 passengers daily.

[2] The passenger statistics for previous years are as shown below.