COVID-19 breaks the traditional teacher-centered and teacher-filled teaching mode. In the epidemic period, more colleges and universities adopt the online and offline teaching mode to teach. This paper analyzes the advantages of Superstar Learning Plat- form, and uses this platform as an auxiliary teaching platform to carry out mixed teaching for Computer Application Foundation, aiming at exploring a new teaching mode suitable for learners' needs in the practice of mixed teaching, and providing reference for future teaching.