The purpose of present study is to present a few educational methods for improving cultural communication ability of multicultural family’s children. For the purpose of the study, it has discussed of the myth of creating the world and the myth of founding a country of Korea, Vietnam, Mongolia. The summary is on the below. In chapter 2, it dealt the necessity and the educational meaning using the myth for multicultural family’s children. The chapter 3 has been consist of inquiries on contents of the myths of Korea, Vietnam, Mongolia. In chapter 4 and 5, comparative studies have been carried out among the myths of Korea, Vietnam, Mongolia. In chapter 6, it dealt the 10 items for educational methods for improving cultural communication ability of multicultural family’s children.