To compactly arrange a nozzle for supplying an aqueous solution into an electrolytic cell so as not to come into contact with electrolytic water in the electrolytic cell in an electrolytic water generator for generating the electrolytic water and an air conditioning sterilization system provided with the electrolytic water generator.

In the electrolytic water generator 5 which includes the electrolytic cell 51 for storing the electrolytic water and a saline solution tank 59 which stores a saline solution supplied to the electrolytic cell 51, the nozzle 90 for supplying the saline solution from the saline solution tank 59 into the electrolytic cell 51 is provided above a predetermined highest water level H of the electrolytic cell 51, a saline solution outlet 90a is located above the predetermined highest water level H, the nozzle 90 is provided with a gravity dependent check valve 91 and arranged so as to be obliquely inclined, and the electrolytic cell 51 is provided with a lower limit pin 93 for defining the lower limit of the inclination of the nozzle 90 and an upper limit pin 92 for defining the upper limit of the inclination of the nozzle 90.