Abstract: In a sterilizing and rinsing water generating method of generating sterilizing and rinsing water by increasing the electric conductivity of water by adding halide electrolytes to the water and creating hypohalogenous acid by electrolyzing the water using an anode plate and a cathode, the mole ratio of bromide ions and chloride ions supplied by the electrolytes is set to 57:43 or a value in the vicinity of it. The sterilizing and rinsing water generated by the method can sterilize even germs which form spores having a high tolerance. There is also provided a sterilizing and rinsing water generating apparatus for embodying the method.