Lutetium oxide is white powder, insoluble in water but soluble in inorganic acids. It is widely used in many fields, such as as an additive to NdFeb permanent magnet materials to enhance the magnetic properties of materials; In the chemical industry as a catalyst to promote chemical reactions; In the electronics industry, lutetium oxide is the key material for the manufacture of electronic components. At the same time, it is also used in scientific research, such as as an active material for phosphors. In addition, lutetium oxide plays an important role in ceramics, glass coloring and laser technology. With the development of science and technology, the application prospect of lutetium oxide will be broader.