Abstract: According to the supporting situation of the preparatory stage curriculum for ethnic preparatory students in the undergraduate stage, using the scientific method of data statistical analysis, the correlation between undergraduate and preparatory courses are studied. Scores of technological courses of preparatory students from Beijing University of Posts and Telecommunications and Beijing Institute of Technology are taken as samples. Through cluster analysis and regression analysis, the positive correlation between preparatory course scores and undergraduate course scores is noted, and the influence of factors is significant. After studying preparatory courses in one or two years, the scores of preparatory students have fewer differences from those of undergraduate students. The research results provide an objective and quantitative scientific basis for curriculum reform and curriculum system construction, and further reveal the importance of ethnic preparatory education.

Key words:  ethnic preparatory course, data analysis, cluster analysis, regression analysis