An automatic cooking apparatus includes a main housing, a drinking water supply unit, a cooking apparatus and a controller. The drinking water supply unit includes a drinking water tank and a drinking water supplying apparatus including a water delivering unit connected to the drinking water tank. At least one drinking water outlet is provided on the main housing and is connected to the water delivering unit. The cooking apparatus includes a food storage tank and a cooking unit. The cooking unit includes a pot and a heater thermally communicated with the pot. The controller is electrically connected to the drinking water supply unit and the cooking apparatus, and operates the automatic cooking apparatus on at least one of a water supplying mode and a cooking mode.