[3] In addition to the local trains of the Dosan Line, the following limited express services also stop at Susaki Station:[4] The station consists of a side platform and an island platform serving three tracks.

A station building houses a waiting room, a JR ticket window (with Midori no Madoguchi facility) as well as a JR Travel Centre (Warp Plaza).

With the privatization of JNR on 1 April 1987, control of the station passed to JR Shikoku.

[3][8] A plate on the station building declares that Susaki is "Point Zero" on the Dosan Line, though this is incorrect.

Susaki was the first station to be built in Kōchi Prefecture but Tadotsu in Kagawa Prefecture was built in 1899 and the stretch of track from there to Sanuki-Saida was completed by 1923 and this would later also be part of the Dosan Line.