A wall-mounted washing machine includes a rear panel capable of being hung on a wall surface; a tub configured to store washing water and supported by the rear panel; a drum rotatably installed inside the tub and configured to accommodate washing objects; a tub front panel coupled to a front surface of the tub; a drying device coupled to an outer surface of the tub and configured to dry the washing objects; and a water level detecting sensor coupled to the tub front panel and configured to detect an internal pressure of the tub to determine an amount of the washing water. The water level detecting sensor is disposed in a front upper portion of the tub front panel.
