Abstract: In the web2.0 environment, the idea of information organization with user-centered and encouraging users to participate in is rapidly widespread, more and more users take part in library information organization. This paper analyses the feasibility of users＇ participation in library information organization under the web2.0 environment, and discusses the mode of users＇ participation in library information organization.

Key words: web2.0; user;, information organization; library