A wall mounted washing machine reduces operating noise and prevents impacts caused by physical contact in advance, the machine includes a cabinet having a front surface and a rear surface to be opened to form an appearance; a tub disposed in the cabinet, the tub operable to be filled with wash water; a front panel installed in the tub; a drum rotatably installed in the tub; a cover installed in the front panel and having a door hinge; and a door rotatably coupled to the door hinge and having a door inner frame and a door outer frame coupled to each other. The cover includes a gap holding portion integrally formed on a lower outer surface of the cover to prevent interference between a lower outer surface of the door inner frame and a lower outer surface of the cover which face each other.
