Based on the case study and the comprehensive resources, the author made a textual research on the specialized library collected documental resources. the digitalized management of specialized library documental information resources is a major theoretical and practical problem in the research and development of Chinese digital library. Each library should apply to register one actively according to it’s speciality of collection to complement each other in the advantages of digital documental information resources and to avoid repeated construction at the same time. The ultimate aim is the realization of effectively using and sharing the information resources with the aid of network environment and high function computers.