The proportion of drugs is an important index of medical insurance payment management, which is usually used to evaluate the rationality of medical expenses and drugs. In many countries, the proportion of drugs is usually an important indicator of medical insurance, and medical insurance institutions will adjust the payment policy of medical insurance according to the proportion of drugs to ensure the rational use of medical resources and the sustainability of medical insurance funds. Proportion of drugs = drug income/(drug income+medical income+other income). The proportion of drugs can be controlled from the source, standardized at the end and monitored dynamically, so the proportion of drugs plays an important role in the national drug evaluation, and it needs to be controlled within a certain range.