Abstract: Provided is a hypochlorous acid disinfection water machine. The hypochlorous acid disinfection water machine includes a water inlet pipeline; a primary electrolyte cell, which is internally provided with a cation exchange membrane, and the outlet end of the water inlet pipeline communicates with the primary electrolyte cell; and a secondary electrolyte cell, which is a non-membrane electrolytic cell, a primary hypochlorous acid solution in an anode chamber of the primary electrolyte cell communicates with the secondary electrolyte cell, the primary hypochlorous acid solution in the anode chamber of the primary electrolyte cell is electrolyzed again in the secondary electrolyte cell to obtain a secondary hypochlorous acid solution. The hypochlorous acid disinfection water machine provided by the disclosure may solve the problem of poor concentration stability of a hypochlorous acid disinfection water machine in the relevant art.