To promote the production of information and knowledge in infor mation user and to raise national competitiveness indigital network environment, the cooperative utilization of dig ital information by digital republication and transmission betw eene utilization of digital information by digital republication a ndtransmission between library and library is influenced by the r egulation of library exemption in copyright law. First of all,this study analyzes limitations and exceptions of copyright in international norm(Berne Convention, Agreement on TRIPsDirective. And then this study analyzes and examinesthe regulation of library exemption in the revised Copyright Ac t of Korea in 2003, library remuneration system, technicalmeasures for protection of copyright, etc. Also this paper poin ts out related problems. As a results of the legal analysis,ans to the revised Copyright Act of Korea in 2003 to promotethe cooperative utilization of digital information by digital r epublication and transmission between library and library