Abstract: According to Coronavirus disease Situation Report– 161 published by World Health Organization on 29 June 2020, globally 10 million cases and 500000 deaths and in Sri Lanka 2037 cases and 11deaths of COVID-19 had been reported . A poor understanding of the disease among Preventive Health care Employees might result in delayed treatment and rapid spread of the infection. This study aimed to investigate the knowledge and perceptions of Preventive health care Employees about COVID-19.A crosssectional, study was conducted during June and July 2020, midst of COVID-19 outbreak in the country. A self-administered questionnaire with 25 survey item was used. A chi-square test was applied to investigate the level of association among variables, with significance set to P<.05. Out of 230 participants, 200 employees completed the survey and response rate was 86.95%.Among participants 71.5% (n=143) were female, 38.5% (n=77) were aged 40-49 years, and most of employees were Public Health Midwife (n=141, 370.5%) and least were Medical Officers of Health (n=11, 6%). Most participants (n=103, 51.3%) used Government web site to obtain information on COVID-19. A significant proportion of participants had poor knowledge on incubation period (n=41.20.5%) and more (n=187,93.5%)on complication of the disease. All the participants perceived very well about importance of taking travel history and category of waste related to patients (n=200,100%) and poorly (n=76,36%) perceived about the indication of personal protective equipment. Generally participant had moderate amount of knowledge (>57.62%) and positive perception (>69.01%) and Medical officers and Public Health Inspectors scored more than Public Health Midwife. As the global threat of COVID-19 continues to emerge, it was critical to improve the knowledge and perceptions of Preventive Health care Employees .Health ministry should provide a comprehensive and tailored educational and training programme, targeting all staff specially PHM , to promote preventive measures of COVID19, to achieve equilibrium in terms of knowledge on COVID-19.