question: Affected by the situation of COVID-19, the new semester has been delayed in many places of the country In response to the request of the Ministry of Education on 'suspended class, ongoing learning' during the epidemic period, schools at all levels throughout the country have carried out online teaching Through the questionnaire survey, this paper would like to find out the difficulties and challenges facing teachers' online teaching during the epidemic situation, and puts forward some suggestions for online teaching, which may hope to help the promotion of the online teaching © 2020 IEEE