A drum type washing machine includes a cabinet, a tub fixed in the cabinet, and a drum that performs a washing process. A motor rotates the drum, a supporting device that extends from a rotation shaft of the motor to the cabinet rotatably support the drum. A buffering-and-sealing device is provided at the rear side of the tub to buffer a space between the rotation shaft and the tub and to seal the rear side of the tub. A drying device extends from one side of the tub to the other side of the tub to circulate air in the drum and to dry laundry in the drum. Thus, the size of the washing machine is reduced, the washing capacity thereof is increased, and laundry is dried by the drying device.