Based on the good electrochemical selectivity of the organic intermediates of the customer and the irreversible electrosynthesis, on the basis of the preliminary technology development, a box-type electrolytic cell electrolysis technology was designed, in which multiple sets of electrodes are arranged in a certain way within the box, and the pole spacing Controlled at about 1mm, at the same time strengthen the electrolyte mass transfer and rapid heat exchange process, so that the electrochemical reaction process is fast and efficient.