Abstract: In the past 40 years of reform and opening up, the research on Bilingual Education of ethnic minorities has developed rapidly. Based on CNKI database, CiteSpace software is used to analyze the research institutions, contents and trends of bilingual education for ethnic minorities in China during 1978-2018. Five research directions in this field are summarized, including bilingual teaching, bilingual teachers, bilingual education model, bilingual education research in pre-school and primary and secondary stages, Tibetan-Chinese and Uygur-Chinese bilingual education. Research; Bilingual and Multicultural Education in the United States; Language Use and Language Attitudes. The research in this field has gone through four stages:exploratory stage, stable development stage, blowout stage and new era. Finally, in view of the shortcomings of the existing research, some reasonable suggestions are put forward, such as strengthening the educational research on endangered languages, making up for the shortcomings of bilingual education research in higher education stage, and carrying out special research on foreign bilingual education, in order to provide reference for the theory and practice of Minority bilingual education research.