Background: During the COVID-19 Pandemic it requires people to be able to adaptation new habits to prevent and control the spread of COVID-19, including in schools. Schools are a potential place of risk of transmission of COVID-19 because of many people, teachers, students, and the community in the school environment. Teachers, as the spearhead of COVID-19 prevention in schools, are significant to be given education about the adaptation of new habits in schools. Aims: This study aims to determine the differences in knowledge and attitudes before and after health education intervention about the adaptation of new habits in schools for elementary school teachers in Sanga-Sanga, KutaiKartanegara, East Kalimantan, Indonesia. Settings and Design: This research was conducted on Monday, August 3, 2019, at social media WhatsApp group (online). This research used preexperimental research with one group of pre-test and post-test. Methods and Material: The population of all elementary school teachers in Sanga-Sanga with 123 people purposive sampling technique. The data were collected used a questionnaire with a Guttman scale. Statistical analysis used: Data analysis used the Wilcoxon sign rank test. Results: The data showed differences in knowledge and attitudes with a p-value of 0.000. Conclusions: There are differences in knowledge and attitudes before and after health education intervention aboutadopting new habits in school for elementary school teachers in Sanga-