NOVELTY - Processing electrolysis by hydrogen circulation comprises producing hydrogen by processing electrode reaction at a cathode and an anode of the electrolytic cell, consuming, collecting the hydrogen produced at cathode, and transporting the hydrogen to the anode after processing to achieve recycling of hydrogen.    USE - The method is useful in processing electrolysis by hydrogen circulation for producing the alumina (claimed).    ADVANTAGE - The method adopts hydrogen circulation in electrolyzing the sodium carbonate solution, which greatly reduces energy consumption in the alumina production; and utilizes the device, which greatly reduces the energy consumption, and contains the cathode with corrosion resistance and anode, which achieves the gaseous hydrogen oxidation to produce the solution containing hydrogen ions (claimed).    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for:    (1) an electrolysis device with hydrogen circulation, comprising a hydrogen anode, an analytical hydrogen cathode, an electrolytic cell which is divided to anode chamber and a cathode chamber by a diaphragm, and a hydrogen collecting device and a hydrogen processing device. An independent anode air chamber is set on the other side of the anode in corresponding to an electrolyte. The hydrogen produced by cathode is infused into the anode air chamber after collecting; and    (2) producing alumina through electrolysis by hydrogen circulation and electrolysis device, comprising processing electrolysis by carbon denominator liquid to obtain sodium bicarbonate solution and sodium hydroxide solution, respectively using for decomposing sodium aluminate solution and dissolving bauxite, where the electrolysis conditions are: concentration of sodium carbonate solution in the carbon denominator liquid is 1-2.2 M, the electrolytic depth is controlled to less than 90%, concentration of sodium carbonate solution infused in the cathode chamber is controlled to 0-8 M, the concentration of sodium carbonate solution flowing out is 6-10 M, the temperature of electrolysis process is 40-80 degrees C while the current intensity is 500-4000 A/m2.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic representation of the electrolysis device with hydrogen circulation.