In this paper,the author explains the urgenly and necessity of recomposing the core competition power of libraries from the view of impact by knowledge information industry,knowledge information service,and permitted digital library Co.

The paper discusses the role of Internet information in the construction of agricultural digital library and the feasibility of resource organization of both Internet information and library collection.

Information conference consultation of digital library of hospital;

Digital hospital and digital library;

Set up secure digital library by using IPSec/SSL VPN;

Construction of digital libraries and cooperation strategy of its social communities;

Digital libraries and traditional libraries: a comparison;

Legal factors in building of digitized library;

The paper discusses the basic concept,main characte ri stics and key technologies,construction of digitized library at home and abroad .

This paper expounds the concept and features of the digitized library and digitized reading room, advances the principles of constructing the digitized reading room, and introduces the general situation of the digitized reading room of the library of Taiyuan University of Technology.