The requirements of the new era are to deepen the reform of classroom teaching, actively explore the interactive, heuristic, exploratory and experiential classroom teaching based on the situation and problem orientation, and promote the deep integration of information technology and education and teaching. The rapid development of technologies such as big data and artificial intelligence has made teaching reform and innovation in higher education classroom an inevitable choice. The traditional teaching mode has no longer adapted to the development requirements of the new era. On the basis of summarizing the disadvantages of the traditional teaching mode, we summarize the relevant literature of PBL teaching mode and flipped classroom, and put forward the flipped classroom teaching mode based on PBL in combination with the characteristics of "electrical control and PLC" course. This hybrid teaching mode takes PBL model as the basic framework, and absorbs the essence of flipped classroom, which is conducive to solving problems in traditional classroom and giving full play to the subjective initiative of teachers and students.