Abstract: In the era of knowledge economy,the update of knowledge is quicker.The competition among the libraries,database producers, publishers,consultants and information service providers is increasing sharply.If libraries want to win the competition,they must construct the core competitive power.At the same time,library,whose duty is to collect,arrange,keep,propagate and utilize knowledge,must carry out knowledge management.By comparing and analyzing the relation of them,this paper points out that knowledge management is a strategic choice to build the core competitive power of libraries.

Key words: knowledge management;library;core competitive power