The main objectives of health services are; to increase the quality of health services offered, to provide equal, effective and quality health services to all parts of the society and to all individuals, to increase patient satisfaction, to increase the efficiency and effectiveness of health services to higher levels. In order to determine the quality of the service provided in the health sector, it is necessary to examine the components that make up the service quality. During the Covid-19 pandemic in our country, the intensity of appointment systems, especially, caused an increase in the complaints of patients who could not be examined. The aim of this study is to investigate whether t here is a significant difference in the complaints of patients and their relatives related to the emergency department before and during the Covid -19 pandemic. In our study, patients and their relatives who applied to the Emergency Department of a university hospital between March - November 2019 and March-November 2020 were included. The starting date was 11 March 2020, the date of the first Covid -19 case in Turkey, and it was aimed to compare patient complaints within the time interval covering the same months 1 year ago. In our study, a total of 1508 applications were examined, and it was observed that patient complaints generally decreased during the pandemic. Among t he complaints included in the evaluation, a decrease was found during the pandemic in those related to the emergency department and those originating from the doctor. When it is considered as a complaint, it has been seen that the complaints related to cleaning h ave increased during the pandemic. As a result, in our study, it was observed that patient complaints generally decreased during the Covid-19 pandemic period.