Neutralization reaction to be caused during mixing can be decreased by mixing a generated gas into electrolyzed water, and a washing obj ect can be automatically washed with the highly effective electrolyzed water. An automatic washing apparatus 1 according to the present invention includes: an electrolyzed water generation unit 8 that electrolyzes raw water to which an electrolyte is added to thereby generate electrolyzed water； a bubble generation unit 9 that allows fine bubbles to be contained in the electrolyzed water with use of a generated gas generated in the electrolyzed water generation unit 8 to thereby generate bubble electrolyzed water； a washing unit 4 that discharges the bubble electrolyzed water to a washing object to wash the washing object； and a control unit 2 that controls a discharge timing and discharge amount of the bubble electrolyzed water.
