In Korea bilingual education for multicultural family is insufficient. By having interviews with marriage-immigrants, it was surveyed if they had minds to teach their children bilingualism. Marriage-immigrants usually immigrate into Korea without learning Korean, so they have troubles in communication. Also they have troubles in developing their children’s thinking ability, because their husband and parents-in-law want the marriage-immigrants to bring up their children using Korean. Therefore bilingual education is necessary. Through the study on foreign examples for bilingual education, a bilingual education policy was suggested for Korea. The earlier the bilingual education starts, the less social cost is paid. Language is not a simple measure for communication, but it contains the life and soul of the user. Therefore systematic approval of the use of minority’s language will be valuable in the point that the life and sole of the minor race are acknowledged. In America, children of immigrants have tendency to learn their mother language when they enter undergraduate. This is because language is important for them to setup their identity. Bilingualism can make a great contribution to bringing up the multicultural students to international citizen in this globalized times. The discussion about bilingual education will bring about a chance for widening the comprehension and concern about immigrant family.