According to classification of ethnic group, Taiwan has four ethnic groups. Due to gradual increase of immigration of foreign spouse, the appearance of Taiwan's ethnic group will change. But so puzzling is that the people are not willing to face the fact. In fact, our official, mass media and the public always treat foreign spouse unfairly. This article will point out that ethnic discrimination is contrary to the spirit and policy of human rights. On the other hand, this article will suggest that how to institute fair ethnic society through two means by law and education.