A sheet housing device includes a supporting member, a driving pulley, a driven pulley, a timing belt, a driving part, a stacking tray and rotating members. The driving pulley and the driven pulley are rotatably provided at one end and another end in a longitudinal direction of the supporting member, respectively. The timing belt is windingly stretched between the pulleys. The driving part drives and rotates the driving pulley. The stacking tray is fixed to the timing belt and attached to the supporting member to move between both ends of the supporting member according to rotation of the timing belt. The rotating members are provided at another end side more than a rotational center of the driving pulley and at both outsides more than the timing belt and are rotatably attached by having a rotating shaft parallel to a rotating shaft of the driving pulley.