N-VinylpyMlidone (NVP) was first synthesized by acetylene method by J. Walter Rappe of Germany BASF Company. It has a history of more than 70 years. The molecular structure of Nv butyl monomer contains vinyl group, which is very prone to polymerization. Polyvinyl pyrrolidone (PVP), the homopolymer product of Nv butyl monomer, has excellent solubility, chemical stability and film-forming properties. It is widely used in pharmaceutical, cosmetics, food, printing and dyeing industries. In addition, NVP monomers are easily copolymerized with other unsaturated monomers to form polymer compounds containing both NW and other copolymer structural units. With the rapid development of science and technology. The research on the enlargement of the application scope of PVP in NVP polymerization is also gradually deepening. At present, the research of NVP has been extended to the field of copolymerization of NVP with other unsaturated monomers, and the synthesis, properties and applications of NVP copolymers have been the focus of current NVP research. Overseas, the study of NVP copolymerization began in the 1940s, and its main application is in cosmetics and medicine and health.