Abstract: With the rapid development of the electric vehicle and energy storage industry, a large number of related industries, including the upstream mineral industry, the middle material processing industry, the downstream battery processing industry, have been driven by a large number of demand for cathode materials.Based on the characteristics of safety and thermal stability of anode materials, this paper summarizes the basic principles and process characteristics of each process in the processing industry of cathode materials, briefly introduces the theory, technology, equipment and inspection in each process from precursor to product, and expounds the development of the NCM cathode industry in the future.