The purpose of this study is to identify the problems of the distribution and maintenance of the KOLAS, and provide the developmental direction of the KOLAS. The research methods for this study are both survey and field interview. The results show that first, the National Library of Korea should continue to distribute the KOLAS to public libraries, and second, there are a lot of problems for maintenance of the KOLAS. However, some of the problems of KOLAS could be resolved, but not all of them. Thus, this study proposes the developmental plan of the KOLAS for future. The National Library of Korea should open the KOLAS to open source software for public, so that libraries and vendors may develop new ILS based upon the KOLAS.