The station building is a modern concrete block structure which is now unstaffed and serves only as a waiting room.

[2][4][5] On 1 October 1912, Japanese Government Railways (JGR) opened a track between Yoshimatsu and Kobayashi (then named Kobayashimachi) during the first phase of construction of what it then designated as the Miyazaki Line.

On 15 December 1923, the stretch of track between Yoshimatsu and Miyakonojō which included Kyōmachi, was designated as part of the Nippō Main Line.

On 6 December 1932, the same stretch was separated out and was designated as the Kitto Line with Miyakonojō as the starting point.

With the privatization of Japanese National Railways (JNR), the successor of JGR, on 1 April 1987, Kyōmachi came under the control of JR Kyushu.