Abstract
During the epidemic period, vocational colleges made a preliminary exploration of online teaching in response to the national call of "suspending classes without stopping learning",Due to lack of experience, many problems and deficiencies were exposed. This paper systematically analyzes and summarizes the crux of online teaching in vocational colleges during the epidemic period, and then combs out the reform ideas of online teaching,which provides certain guidance and action path for the normal operation of online teaching mechanism in the post-epidemic era—integration of off-line & on-line, and concretely expounds the specific path of integration of off-line & on-line towards normalization of from three levels: home-school integration, virtual-real integration and production-education integration.