The ticket window which it houses has become unstaffed and the building presently serves only as a waiting room.

[3][2][5] Japanese Government Railways (JGR) opened the station on 11 December 1919 as Ōmachi Signal Box on the existing track of what was then the Nagasaki Main Line.

On 1 September 1928, the facility was upgraded to a full station and passenger services 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.

[8] Media related to Ōmachi Station (Saga) at Wikimedia Commons