An electrolyzed water generation device 1 comprising a plurality of electrolysis chambers 30, 40, ... for the electrolysis of water. Each electrolysis chamber 30, 40, ... has arranged therein: a firstpower feeder 31, 41, ... and a second power feeder 32, 42, ... arranged facing each other; and a partition membrane 33, 43, ... that divides the electrolysis chamber 30, 40,... into a first polar chamber 30A, 40A on the first power feeder 31, 41 ... side and a second polar chamber 30B, 40B, ... on the second power feeder 32, 42, ... side. A solid polymer membrane is used as the partition membrane33, 43, .... At least two electrolysis chambers 30, 40 are connected by parallel water channels 51 that connect the first polar chambers 30A, 40A in parallel and by a serial water channel 55 that connects the second polar chambers 30B, 40B in series.