As of September 21, 2021, 65.3 percent of Mongolias population was vaccinated at full dose. However, as of COVID-19 confirmed cases, Mongolia is in the top five countries in the West Pacific. This indicates that there is a lack of practice to prevention from coronavirus infection in the population. This survey Aims to compare the level of attitudes, and practices of the population towards coronavirus infection with the Results of the baseline survey Results; and disseminate evidence-based recommendations for decision-makers who are dealing with the pandemic. The cross sectional method used for data collection and analysis was conducted using SPSS-23. A total of 1896 people aged 15-60 years old participated in the study. The 56.6% were from Ulaanbaatar and 43.4% were from rural areas. Compared to the baseline survey Results, in the follow-up survey, practices of wearing masks in the workplace or indoor environment (73.0%) had increased. Most of the population surveyed is aware of ways to preventive measures of infection.