This paper aims to clarify the arts policy in Japan soon after the World War II, which has not been focused by the research on social education nor on arts policy. First, after the review of the concept of "cultural pocicy" around 1940, the arts policy in Japan in post-war period is analyzed from three perspectives : Reformation of the Ministry of Education, arts policy of CI&E and cultural activity sprung up all over Japan. They are important factor to promote the reformation of the post-war structure of arts policy in social education. Secondly, Geijutsusai (Arts Festival) held in Septemb...