The station building is a modern design of concrete and is a elevated structure where the passenger facilities such as a waiting area, ticket window and automatic ticket vending machines are located on a bridge which spans the tracks.

It staffs the ticket window which is equipped with a POS machine but does not have a Midori no Madoguchi facility.

[4][5] Japanese Government Railways (JGR) opened the station as Mitagawa signal box (三田川信号場, Mitagawa-shingōba) on 30 September 1942 on the existing track of the Nagasaki Main Line.

On 1 December 1943, the facility was upgraded to a full station and passenger traffic commenced.

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