With the development of industry, the discharge of organic wastewater is increasing, especially the high-concentration wastewater discharged by chemical, food, pesticide and pharmaceutical industries, which has high chroma and toxicity and contains a large number of biodegradable components, seriously polluting rivers, lakes and seas. The new technology of electrolysis water treatment has no need to add chemical agents, the equipment is small in size, does not occupy a large area, does not produce secondary pollution, has been used to treat the wastewater containing hydrocarbons, alcohols, aldehydes, ethers, phenols and other organic pollution, known as green water treatment. The removal of COD mainly depends on the oxidation reaction on the anode surface, which directly oxidizes and degrades organic matter on the anode surface, and the anode potential must be higher than the decomposition potential of organic matter. The titanium anode produced by our company can withstand higher current density in the process of oxygen evolution and chlorine evolution electrolysis, significantly reduce the tank voltage, and have significant energy-saving effect; It does not pollute the medium and improves the purity of the product. After long-term use, after the active layer of the anode is deactivated, it can also be repaired and recoated, and the titanium matrix can be reused, which can save precious raw materials.