Hydrogen and oxygen generator

A hydrogen-oxygen generating device comprises an electrolytic cell with a plurality of electrode plates, an electrolyte storage tank connected with the electrolytic cell via an electrolyte pipe, a gas-liquid separator connected with the electrolytic cell via a gas-rising pipe and a gas collector filled with liquid and connected with the gas-liquid separator via a gas pipe. One end of the gas pipe is connected with the gas-liquid separator, and the other end is strectched into the liquid of the gas collector. The electrode plates are connected in parallel, an insulation seal element is provided between every two electrode plates, and a through hole is arranged on the insulation seal element. A temperature sensor is arranged on the electrolytic cell, power joints are arranged on both ends of the electrolytic cell, the power joints are connected with the AC power supply and a double-potential convertor connected with capacitors and a current limiter, and the double-potential convertor converts the alternative current to the direct current. The hydrogen-oxygen generating device has the advantages of low electric energy consumption, reduction of heat loss and environmental protection.