The invention discloses a teaching system of a flipped classroom pattern. The teaching system comprises a before-class part, a class part and an after-class part; students and a teacher use smart phones, a computer and an intelligent large screen to realize teaching of the flipped classroom pattern, and a flipped classroom APP is installed in each of the smart phones, the computer and the intelligent large screen; and the flipped classroom APP is provided with a micro course resource, a typical case resource, a professional public policy diagnosis tool, a diverse grouping pattern, a real-time statistical tool, a five-star review function, a review paintbrush, a countdown tool, a real-time interaction zone, a multi-dimensional performance scoring mode and a real-time linkage function. The social security theory teaching system created for flipped classrooms breaks through the single and boring theoretical teaching pattern of the traditional public management course, sufficiently animates the classroom atmosphere via various teaching modes, deepens the understanding on relevant theoretical knowledge, and cultivates students' abilities of self-regulated learning, problem discovery and collaborative solution of problems.