[3][4] The station consists of two staggered side platforms at street level.

During the JNR era, the station consisted of a wooden station building, and there was a freight siding and platform on the east side, as well as several small freight handling sidings on the west side, where freight cars parked at the neighboring Izumi Station were shunted and freight was loaded and unloaded at the nearby Yonotsu Port.

Komenotsu Station was opened on 15 October 1923 as a station on the Japanese Government Railways Sendai Line, which was incorporated into the Kagoshima Main Line on 17 October 1927.

With the privatization of the Japan National Railways on 1 April 1987, the station was transferred to JR Kyushu.

On 13 March 2004, with the opening of the Kyushu Shinkansen, the station was transferred to the Hisatsu Orange Railway.