Dish washing machine

The utility model provides a dish washing machine. The machine comprises a machine body and a water tank arranged on the machine body, the machine body comprises a control unit and a washing cavity. Awater inlet and a water outlet are formed in the water tank; a first electromagnetic valve for unidirectionally introducing water from the water tank to the washing cavity is arranged between the water outlet and the washing cavity, and the water inlet comprises a tap water inlet and a manual water inlet, so that the water tank can be filled with water manually or tap water, a user can select according to actual use, and the practicability of the dish washing machine is improved; the tap water inlet is provided with a second electromagnetic valve for unidirectionally introducing water from atap water source to the water tank; a floater capable of floating up and down along with the water level is arranged in the water tank; when the floater reaches the preset water level, the control unit controls the second elec