Qualitative research and quantitative research have their own advantages, so mixed use both to improve scientific research. Too many Chinese Ethnic Minority Educational Research in qualitative research, and few use quantitative research, leading the results with many subjective factors. The reason is that selecting ethnic minority educational research paradigm is based on the subject property-oriented, rather than a problem-oriented research, and the selection of ethnic minority educational research paradigms was too concern about minority culture, ignored its educational attribute. Mixed methods research as the "third methodological movement", it can not only integrate the advantages of qualitative research and quantitative research, and enhance the consciousness of problem-oriented of researchers, but also to improve the science of ethnic minority educational research and promote the development of this discipline.