A dishwasher with a respirator and its control method, the dishwasher includes an inner tank, the inner tank is provided with a water softener, an integrated respirator, the integrated respirator is provided with condensation sheets, and the integrated respirator is provided with steam condensation area, water storage area, the water storage area and the steam condensation area are connected, the water softener and the integrated respirator are respectively provided with the first water inlet channel flowing to the inner tank corresponding to the water storage area, and the integrated respirator and the inner tank are provided with The second water inlet channel flows to the inner tank, the first water inlet channel is used for providing distilled water entering the inner tank, and the second water inlet channel is used for tap water entering the inner tank. The present invention effectively utilizes the steam generated by the dishwasher liner during heating to condense the steam into water droplets, collect and store the condensed water droplets through the water storage area in the integrated respirator, and use the collected condensed water droplets for washing dishes In the washing process of the machine, the energy efficiency of the dishwasher is effectively improved.