An electrolysis water-making apparatus (1) generates electrolyzed products by supplying a raw material solution into an electrolytic cell (4) to perform electrolysis, and generates electrolyzed water by diluting the electrolyzed products. The electrolysis water-making apparatus (1) includes a casing (20) configured to accommodate the electrolytic cell (4), and a bracket (30) fixed to the casing (20) in a freely detachable manner, and the bracket (30) includes a pair of rigid walls to which one end and the other end of the electrolytic cell (4) are attached. The pair of rigid walls have a dimension therebetween that can be adjusted according to the linear dimension of the electrolytic cell (4).