The COVID-19 pandemic with new variants has been seriously affecting people’s health, teaching and learning in the Ministry of Education and Training, and many unpredictable developments. Online teaching is a form of teaching that has been widely applied in many countries around the world such as Korea, Singapore, USA, Japan, etc. to help learners adapt to the working environment of the 21st century. In Vietnam, online teaching is not only a temporary solution to cope with the COVID-19 epidemic situation, but is considered an inevitable and long-term trend. This article studies some effective online teaching methods, contributing to improving the quality of online training in Ho Chi Minh ideology today.