This study aims to examine the problems of the Article 31 of the Korean Copyright Act and to suggest the improvement of the Article 31. The study analysed the establishment and revisions of the Act and the Article 31. The study suggests the followings for the improvement of the Article 31: firstly, to limit copyright limitations for libraries operated by profit organizations but to extend copyright limitations for libraries operated by non-profit organizations, secondly, to abolish the system of property rights compensation, thirdly, copyright organizations and library associations closely discuss to solve the problems on reproduction prevention measures, the amount of reproduction, the inter-library loan of library materials among libraries.