Since November 2019, COVID-19 has spread rapidly around the world. In order to control the epidemic, countries have resorted to measures such as social distance, reducing gatherings, and isolation, ranging from community blockades, school closures, and lockdowns. Various epidemic prevention measures have affected the national economy and society, and have also had a major impact on the education system. According to statistics from the United Nations Educational, Scientific and Cultural Organization (UNESCO), as of March 2021, more than 168 million schoolchildren around the world have not attended school for a year. The impact of school suspension is both deep and wide.