Purpose: This study aimed to examine the impact of fear and perception of infection risk on depression among service workers during prolonged Covid-19 service, and to provide basic data on the impact of COVID-19 prevention on the psychological health of service workers. Methods: Data were collected from workers nationwide from May 24 to 31, 2021. The data were analyzed using the t-test, ANOVA, Scheffé test, Pearson’s correlation coefficient, and multiple regression analysis, using SPSS 28. Results: It was found that 44.3% of the participants experienced depression (PHQ-9 total scores ≥ 10) during the Covid-19 pandemic. The general characteristics of service workers that made a difference in the level of depression were health status, smoking, and perception of infection risk. Conclusion Social support from institutions is needed to treat depression caused by Covid-19 among workers in the service sector.