On the bridge structure are located a waiting area, a kiosk, and a staffed ticket window with a Midori no Madoguchi facility.

[3][2][4][5] To the east of the station are multiple sidings and a turntable belonging to the maintenance depot or "driving centre" of the Nagasaki branch of JR Kyushu.

[3] The private Kyushu Railway had opened a track from Tosu to Saga and Takeo (today Takeo-Onsen) by 5 May 1895.

By 20 January 1898, Haiki became a through-station when the track was extended to Sasebo while another branch had reached Ōmura and then on 27 November that year, Isahaya and by 5 April 1905, Nagasaki.

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