Scandium is a soft, silver-white transition metal with good ductility and catalytic properties. Scandium has important applications in many fields. In the aerospace industry, scandium alloys are used to manufacture high-temperature engine parts and turbine blades because of their high strength, hardness and high temperature resistance. In iron and steel smelting, scandium can significantly improve the strength, hardness and corrosion resistance of steel. In addition, scandium is also used in the manufacture of special glass, lightweight high-temperature alloy and rare earth permanent magnet materials, such as Ndfeb permanent magnets, which can improve the thermal stability and magnetic properties of the material. The chemical properties of scandium are active, and it is easy to react with oxygen, carbon dioxide and water in the air, so it needs special preservation. Despite the complexity of its extraction and processing, scandium's wide application and unique properties make it a valuable resource in materials science and industry. With the progress of science and technology, more application potential of scandium is being continuously explored and utilized.