Nickel ore has good chemical stability, ductility, melting resistance, high temperature resistance and other high-quality characteristics. It is a very important non-ferrous metal raw material, which is used to manufacture stainless steel, high-nickel alloy steel and alloy structural steel. It is widely used in various military manufacturing industries such as aircraft, radar, missiles, tanks, ships, spacecraft, and atomic reactors. When the nickel content exceeds 3%, it can be directly smelted and used for the production of various materials. However, when it is less than 3%, it can only enter the smelting process after the beneficiation process and the supporting beneficiation equipment are used for separation and purification. Depending on the composition of nickel ore, the selected process methods are also different.