Desalination of seawater and brackish water can desalinate brackish water with a salt content of up to 60g/L into drinking water to solve the drinking water problem in desert areas. Electrodialysis desaltors are widely used in food, light industry and other industries to produce pure water. Pre-treatment of high purity water produced by electronic, pharmaceutical, chemical and other industries; The primary softening and desalting of boiler feed water desalination into drinking water and desalting of some chemical products. Electrode material is one of the key components of electrodialysis desalinator. This electrode material requires both oxidation and reduction resistance, that is, both anode and cathode, the current ideal electrode is a multi-component metal anode containing iridium, which can meet the electrode reversal requirements, but also has lower overpotential, energy-saving performance, and longer service life than the general ruthenium-iridium coated metal anode.