To provide a generator of electrolyzed water for cleaning, which generates electrolyzed water without metallic impurities and solid fine particles, can work stably even in continuous operation over a long term, and can exchange electrodes easily without interrupting the operation.

A generator of electrolyzed water for cleaning has a plurality of two-chamber type diaphragm electrolytic cell units 2 each of which consists of an anode chamber 3 accommodating an anode and an anode feeder each formed by covering the surface of an expand titanium substrate, which has been subjected to flat processing of smoothness of 10-80%, with an active layer, a solid polymer electrolyte diaphragm, and a cathode chamber 4 accommodating a cathode and a cathode feeder, and it is arranged with piping for water supply and piping for water discharge.