 Most of the station is built on an embankment, and the platforms abut a tunnel towards the Yokosuka-chūō side.Shioiri Station was opened on April 1, 1930, as on the Shōnan Electric Railway, which merged with the Keihin Electric Railway on November 1, 1941.The station was renamed on October 1, 1940, and to its present name on September 1, 1961.