The purpose of this study is to develop the evaluation indicators of school libraries in Korea. To do this, the indicators were extracted from an analysis of seven foregoing studies. The draft of evaluation indicators was made after reviewing the validity of each indicator according to the criteria: quantifiability, objectivity and possibility of obtaining evaluation materials. The feasibility of the standards and measures used by the Committee on Library and Information Policy was examined to improve the validity of new indicators. To decide the distribution of marks for evaluations, the opinions of teacher librarians and professionals on the importance of indicators was surveyed, the evaluation indicators used by the Committee on Library and Information Policy were analyzed, and an intensive review was done by professionals. A draft of an evaluation index with thirty indicators in six categories is proposed.