The term 'Sustainability Report' currently became the main topic of the world. Sustainability report is considered as a new paradigm which could be a solution in every aspect or area, and is being recognized as a source of existence and international competitiveness in the future. Therefore much attention is paid to the corporations which issue sustainability report. However the term ''Sustainability Report' is overused in many fields without being defined and understood clearly. Therefore this study reviews the conceptual background and relations of the terms related to the sustainable report, and then grasps the essential meaning of the sustainability report. The study also examines the problems concerned to sustainability report in Korea.