In this paper, three private colleges and universities in China are taken as the research objects. Combined with the literature, we establish the evaluation index system through the analytic hierarchy process to determine the index weight. This paper used the fuzzy comprehensive evaluation method to build a fuzzy comprehensive evaluation model of the study style of colleges and evaluate the construction level of private colleges and universities. The research results are as follows: the construction level of study style in private colleges and universities is good. And some issues could be improved. This paper analyzes the results of the questionnaire on the five factors that affect the construction of study style in private colleges and universities and puts forward some countermeasures to improve the study style. The approaches are as follows. First, teachers should take the ideological and political theory course as the primary and focus on improving effectiveness. Second, it is necessary to improve practice education and give full play to its function. Third, teachers and students should use the media carrier of colleges to form a comprehensive communication system of study style education. Next, the manager strengthens the college campus culture's construction, broadening the culture education path. Finally, strengthen the construction of education teams in colleges and universities to guarantee educational achievements.