Desalination of seawater and brackish water can desalinate brackish water with a salt content of up to 60g/L into drinking water, solving the problem of drinking water in desert areas. Electrodialysis desalinators are widely used in food, light industry and other industries to produce pure water; pre-treatment of high-purity water in electronics, medicine, chemical industry and other industries; primary softening and desalination of boiler feed water. Desalination of seawater into drinking water and desalination of some chemical products. Electrode material is one of the key components of electrodialysis desalinators. This electrode material is required to be resistant to both oxidation and reduction, that is, it can be used as both an anode and a cathode. At present, the ideal electrode is a multi-component metal anode containing iridium, which can not only meet the requirements of electrode reversal, but also has a lower overpotential, power saving performance, and longer service life than the general ruthenium-iridium coated metal anode.