Abstract: The evolution of cloud computing is based on distributed processing,parallel processing and grid computing.Further-more,cloud computing is super-computing model which is based on internet.This paper puts forward that library can provide an information services platform for users which can update resources at any time using cloud computing through innovating the developing environment,innovating information resources sharing model,innovating library business process and innovating information resource security policy,in order to promote library information service innovation under cloud computing environment.

Key words: cloud computing; library; information service