N-bromosuccinimide is an important brominating agent in organic synthesis. The bromination reaction has the advantages of mild reaction conditions, good selectivity, high yield and easy separation of products. It is used in the radical bromination of allyl and benzyl; Electrophilic bromination of ketones, aromatic compounds or heterocyclic compounds and addition of olefins; In addition, it is widely used as catalyst, oxidant and so on. It is a common bromination reagent in chemical industry and pharmaceutical industry. As an important intermediate of medicine, pesticide and organic polymer materials, N-bromosuccinimide is widely used and has a broad market prospect. It plays an irreplaceable role in chemical industry, pharmaceutical industry and organic polymer industry.