A system iron according to the present invention includes a body including a steam generator for generating steam; an ironing plate rotatably disposed on the body and spraying the steam, which is generated by the steam generator, to an outside thereof, a top being hung on an outer side of the ironing plate; a spreading unit for tensioning the top hung on the outer side of the ironing plate; a front press for holding a front surface of the top, which is hung on the outer side of the ironing plate; and a pair of arm tensioners for tensioning sleeves of the top hung on the outer side of the ironing plate.