Abstract
This research presents the pattern of multicultural education development and its implications in developing religious harmony in Southeast Asia. Multicultural education is a process of cultivating values and ways of living respecting, sincere, and tolerant of diversity living in the midst of plural society. With multicultural education, it is expected that the national and mental resilience of the nation in the face of conflict of religious social conflict. This study adopts a qualitative research approach and uses a case study design with multi site design. The research sites in Malaysia, Thailand and Indonesia. The study shows that the problems of multicultural education in Southeast Asia, should be given serious attention, in order to avoid negative attitudes that can destroy the stability of the state and lead to disintegration. Therefore, a multicultural education development pattern is needed through; self awareness, early age education, affirming education based on patriotism and nationalism and equity pedagogy. Through the pattern, will create harmony, harmonization and national resilience.