This study was conducted to propose the improvements by analyzing the actual state of Education Information Disclosure related to the school libraries of elementary and middle schools and by grasping its problems. In order to do that, we examined the Education Information Disclosure standards in school libraries in Korea. The actual state of information disclosure on 13 items related to school libraries was analyzed, using S High School in Seoul as a case study. In addition, in understanding the values of school libraries easily and informing them exactly through Education Information Disclosure, it was judged that the forms and guides for disclosure and the level of school introduction services were somewhat insufficient. On the basis of that, some improvements were proposed, which could help to make the operation and management of Education Information Disclosure in school libraries more efficient.