The conventional Ōu Main Line has a single island platform, serving two tracks. In addition to regular Ōu Main Line trains, the station serves two round-trips per day of Aoimori Railway trains, as well two round-trips of the irregular "Resort Asunaro" (direct to Noheji and the Ōminato Line). Upon the opening of the Tōhoku Shinkansen extension on 4 December 2010, the station became the southern terminus of "Hakuchō" Limited express services to Hakodate via the Tsugaru Kaikyō Line, which ceased upon commencement of the Hokkaidō Shinkansen in March 2016.