This article reviews the functions of secondary language education and provides with a goal setting in KSL curriculum for a multi-cultural society. Secondary language education in a multi-cultural society functions as a bridge. That is, it helps to realize the right as a member of a society, to develop human resources and the harmony. Korea has proceeded into a multi-cultural society. We need a systemic KSL education at school for students from a multi-cultural family and are urgently in need of KSL curriculum. As a basic step to setting goals in designing KSL curriculum, KSL education must fully involve the trend of the secondary education and seek to function itself as an education-based program to enable the multi-cultural children to reach social and educational accomplishment to an equal extent. For this, this article suggests following as a goal for KSL curriculum at school；1) to improve communication ability in living Korean, 2) to improve learning competence, 3) improve intercultural competence, 4) broaden the background knowledge necessary for Korean language arts, and 5) to establish the identity and sense of community.