[Problem to be Solved] Providing a bactericidal water generating system and a method of bactericidal washing which can enhance the bactericidal capacity and washing effect of acidic electrolyzed water. [Solution] An electrolyzer 11 electrolyzes a chloride-containing aqueous electrolyte solution to generate acidic electrolyzed water, the aqueous electrolyte being pre-adjusted to pH 3 to 5 with a pH adjuster. An acidic water container 13 is connected to the electrolyzer 11, and stores the acidic electrolyzed water generated by the electrolyzer 11. A gaseous chlorine circulator 14 collects gaseous chlorine generated from the acidic electrolyzed water in the acidic water container 13, and the gaseous chlorine collected is supplied to the acidic electrolyzed water in the acidic water container 13 by bubbling. A transition metal supply unit 16 is provided so that a transition metal-containing solution can be supplied to the inside of the acidic water container 13.
