This paper is to analyze curricular changes of Chongryon Korean schools in Japan. Chongryon Korean schools belong to the category of miscellaneous schools in the classification by the Ministry of Education in Japan. They neither need to follow curricular set by the Japanese government nor receive subsidies from it. They have their own curricula and textbooks. Historically, there have been 6 curricular reforms in Chongryon Korean schools. After characterizing those reforms, this paper compares the ``Korean`` textbooks of the 1993 and 2003 reforms. In general, the political color of advocating socialism and the Juche idea and anti-American and anti-Seoul propoganda gets thinner in new textbooks. The 2003 Korean textbooks emphasize speaking practice and adapt dialogues rich with story-telling. This paper also examines linguistic norms followed in the Korean textbooks. (Osaka University of Economics and Law)