Abstract: Principles of Food Engineering is a core course of undergraduate food-related majors and needs to constantly transform teaching reform ideas into classroom practices under guidance of new engineering education．In order to overcome problems of low interest, poor targeting, low ideological and political integration, little classroom interaction, and low informatization in course teaching of Principles of Food Engineering course, a new course teaching model was proposed with refactoring course content based on BOPPPS teaching mode and case teaching method, building a course ideological and political case library based on concept of deep integration, and designing online teaching courseware based on fragmented learning strategy．Practice has proven that teaching reform has achieved good results and could provide replicable teaching reform ideas and practical experience for engineering courses．