The connotation and major characteristics of knowledge service,as well as the quality of librarians for knowledge service management were studied.

Thinking on knowledge services of university library;

The realization of cooperative design based on knowledge services was issued in the paper.

In view of the reader s personalized information service needs, the knowledge services offer omnidirectional, multi-level and active service.

Research on agile knowledge reuse based on multi-Agent & knowledge service;

Management of knowledge service in libraries;

Thinking of university library information service with the background of sustainable development;

In order to adapt to this situation and to provide the users with information service, the library should transform itself and become a knowledge center, using new technology to put in order and integrate the physical collection and the virtual collection in the library.

Based on the development of information society integration and computer information process technology,this paper puts forwards suggestion on building efficient and automatic knowledge retrieval platform which is based on information service system and introduces key technologies of retrieval system and its development trend.