Abstract: The mixed teaching mode of online and offline can effectively stimulate students’ learning enthusiasm, so as to improve the effect of undergraduate economics classroom teaching. This improvement is a gradual progress. The prerequisite for the success of mixed teaching mode is that teachers and students should be clear about the whole process of mixed teaching mode, that is, teachers and students know how to cooperate to complete the whole mixed teaching process. In addition, the teaching effect of economics courses will be affected by the way teachers teach in class, so it is necessary to appropriately increase the interaction between teachers and students in class. Therefore, college teachers need to carry out hierarchical management in the mixed teaching process, which includes student stratification and content stratification.