Abstract: The present invention relates to a domestic plant factory able to achieve the aims of reducing hydroponic culture costs and improving air quality, wherein a culture solution is supplied to plants through salt ions generated while removing atmospheric NOX, SOX, PM10, HOCL and the like using an effective microbe fermented solution and a porous filtering medium. The domestic plant factory includes: a casing having a space therein and provided at an upper side thereof with a placement hole; a cultivation cup fixedly placed in the placement hole and provided on a wall thereof with a plurality of through-holes; a rooting member including a vegetation filtering medium charged in the casing or the cultivation cup; and an air supply unit supplying air to water charged in the space of the casing.