This study aim to analyze the relative efficiency of business hotels in the metropolitan area during COVID-19 using an input-oriented DEA model. The number of employees and the number of rooms were used as input variables, and the output variable was analyzed as sales. As a result of the analysis, as of 2020, among the three-star hotels in the Seoul metropolitan area, two hotels were efficient in both the CCR model and the BCC model: Seoul-F and Seoul-H. As for hotels with BCC efficiency of 1, five hotels were efficiently operated: Seoul-A, Seoul-B, Seoul-F, Seoul-H, and Seoul-J hotels. Also, 4 hotels showed diminishing return on scale (DRS), and 14 hotels had increased return on scale (IRS).