Background: Covid-19 is officially acknowledged by WHO as a case of pandemic. The number of Covid-19 confirmed cases in Indonesia is significantly fast due to people’s high mobility and dense population. Hence, the government adjusted and enforced new health protocols, specifically added a policy of reducing mobility. Research Objective: This study aims to knowing the correlation of knowledge and attitudes towards reducing mobility behaviour during Covid-19 pandemic on pre-clinical students of the Faculty of Medicine of Universitas Nusa Cendana. Settings and Design: This is a cross-sectional observational analytic study at Faculty of Medicine Universitas Nusa Cendana. Method and Material: There are 158 respondents who met the inclusion criteria that were chosen through the stratified random sampling method using validated and reliable questionnaires to assess knowledge, attitudes, and behaviour related to their mobility reduction during Covid-19 pandemic. Statistical analysis used: The research was analyzed univariately using a frequency distribution table and bivariate analysis using the Spearman Rank Test α=0.05. 64.6% (102 respondents) have sufficient knowledge about reducing mobility. A total of 93.7% (148 respondents) have a good attitude about reducing mobility and as many as 57.6% (91 respondents) have a good attitude about reducing mobility. Knowledge and behavior have no significant relationship; there is a significant relationship between attitudes and behavior. Conclusion: Based on data analysis, there is no correlation (p=0.875) between knowledge and behavior of mobility reduction. Meanwhile there is a correlation (p=0.04) between attitudes and behavior of mobility reduction.