Abstract: The author holds that a series of model evolutions have taken place in the field of the literature resources exploitation with the development of the hybrid library： the social demand from document safeguard to knowledge safeguard,the exploitation scope from taking the paper document as the dominant factor to merging the virtual document and entity document into a whole organic , the exploitation depth from the whole book or journal to the knowledge unit, the exploitation technique from the literature processing to knowledge information processing and the exploitation products from the secondary publication and the tertiary publication to taking the database as the dominant factor.

Key words: Document Information, Exploitation of Literature Resources, Exploitation Scope, Exploitation Depth, Exploitation Technique, Exploitation Products Class Number