The invention discloses a household intelligent water tank. The water tank includes a tank body, an upper cover, a natural air-drying ventilating device, a water pump, an electric control system, an operation panel, a water leakage part, an electric heater, a water inlet solenoid valve, and a drain solenoid valve. The natural air-drying ventilating device is utilized, residual temperature generated by heating tableware when the tableware is cleaned is utilized, natural air convection is generated, the purpose of natural drying of the tableware is achieved, and the water tank has the functionsof fully automatic washing vegetables, washing dishes, allowing automatic water inlet, draining away water, heating water, and performing ultrasonic cleaning; The water tank has the characteristics ofgood effect of removing residual pesticides, high degree of automation, automatic elimination of oil stains during washing of the dishes, automatic secondary cleaning, drying of the tableware with the residual temperature, good effect of cleaning dirt, capability of washing the tableware in batches, and the like, and the water tank is beneficial to health of people's bodies when people utilizes the water tank in daily life.