The purpose of this study is to seek sustainable development plans in which academic libraries comply with copyright laws without withdrawing their information services by focusing on the changes of the relevant regulations since 2000 when copyright laws were revised. The study deals with the followings in detail. First, the issues with library information services is examined, owing to the enactment, revision, and execution of copyright laws. Second, the histories of enacting and amending copyright laws related to libraries are considered. Third, various opinions and response measures as to applying the copyright laws to libraries are analyzed. Forth, based on the previous analysis, the study suggests response strategies that academic libraries accept for copyright laws and keep improving library information services.