A clothes treating apparatus includes a case with a treatment chamber for holding clothes, a steam unit supplying steam to the treatment chamber, a blowing unit drawing in air from the inside of the treatment chamber, a heat pump unit heating the air drawn in by the blowing unit and discharging the heated air to the inside of the treatment camber, and a control unit controlling the steam unit, the blowing unit, and the heat pump unit, wherein when the heat pump unit is driven after the steam unit is driven, the control unit supplies water to the steam unit after the driving of the heat pump unit terminates.