In this article, the limits and possibilities of Korean unification education is critically examined and compared with the peace process on the Korean Peninsula for overcoming division from the perspective of peace education. For the purpose of becoming a single unified Korea, the direction of unification education has been presented within a hostile frame to cultivate attitudes and values for its own sake. Peace education in a divided society refers to a collective effort to transform the situation of hostile division into peaceful coexistence and rapprochement. In this context, unification education for overcoming the division of the Korean Peninsula should be established as the subject of critical peace education according to the global standards of Sustainable Development Goal 4.7.