Abstract: From the logic perspectives of the practice of outsourcing cataloguing work in library,the impact exerted upon the qualityoriented view of the strict traditional cataloguing, analyzing the organization of catalogue data by the library hook supplier and their ability of processing books,this paper elaborates the advantage and disadvantage of the outsourcing cataloguing work undertaken by the library book supplier,advocates the selectivity of outsourcing cataloguing work under scientific management, and expounds the professional development of the cataloguing workers and the development of the cataloguing work.

Key words: library;cataloging;outsourcing;library book supplier