The application of information‐based teaching methods in higher education has been more and more extensive. In the special year of 2020, the Ministry of Education actively called on teachers to teach online during the epidemic, In order to actively respond to the guiding ideology of "no suspension of classes", Combined with the practice of higher education, this paper expounds in detail the teaching strategies of three links, including pre‐class, in‐class and after‐class, and summarizes some teaching methods in the course of online teaching by optimizing the network teaching platform and resources, optimizing the teaching organization and management process and high‐quality recording and broadcasting teaching.