The is no station building but only a small short open shelter on the platform.

When it first opened, it was an interchange station with one island platform and two tracks.

The station building was renovated into a tourist information center and coffee shop in 1987 and demolished in 2002.

With the privatization of Japanese National Railways (JNR), the successor of JGR, on 1 April 1987, JR Kyushu took over control of the station.

Media related to Kaimon Station at Wikimedia Commons This Kagoshima Prefecture railroad station-related article is a stub.