Dishwasher

The dish washing machine comprises an inner container assembly and a water tank, the water tank is provided with a water tank water adding opening and a water tank water outlet which are communicated with each other, the water tank water adding opening is used for injecting water into the water tank, the water tank water outlet is communicated with the inner container assembly, and the water tank is arranged outside the inner container assembly. A supporting part is arranged on the upper portion of the water tank, the supporting part is arranged on the side, facing the inner container assembly, of the water tank and protrudes out of the surface of the side wall of the water tank, a cavity communicated with the water tank is defined in the supporting part, and the supporting part is supported on the top of the inner container assembly. According to the dish-washing machine, the water tank and components on the water tank are prevented from being damaged, and therefore the use reliability of the dish-washing ma