Abstract: The structure,function and development of traditional Chinese medicine drugs information system based on networks was introduced.The approach and steps of building information system,as well as the application and expectation of this system were described in detail.This system is based on five large databases,including Chinese herb database,effective components database of Chinese herb,Chinese medical recipe database,Chinese patent medicine database and Chinese medical dietotherapy prescription database.The traditional Chinese medicine drugs information system based on networks,combined with other techniques of drug design,have become an important tool for the discovery of leading compound based on traditional Chinese drugs.

Key words: Chinese medical recipe, Chinese patent medicine, Chinese medical dietotherapy prescription, Chinese herb drugs, Effective components, 　Database, Leading compounds