Little is known about the changed working conditions during the SARS-CoV-2 pandemic and the associated psychological stress and strain consequences for social workers in the social services of hospitals and preventive facilities or rehabilitation facilities. The research project "Healthy Social Services" aims to analyze possible relations between working conditions in the SARS-CoV-2 pandemic and the health of social workers in the social services of hospitals and preventive facilities or rehabilitation facilities in Germany. Of particular interest in this project is the psychological stress and strain consequences among social workers in the social services of hospitals and preventive facilities or rehabilitation facilities. The psychological stress and strain consequences will be explored in comparison to all other occupational groups. The data basis of this study is the directory of hospitals and preventive facilities or rehabilitation facilities of the Federal Statistical Office (2020). On this basis, two online surveys will be conducted among all social services of hospitals and preventive facilities or rehabilitation facilities in Germany. The aim of the research project is to identify optimization potentials for the reduction of occupational stress for social workers in the social services of hospitals and preventive facilities or rehabilitation facilities and to derive recommendations for action on the basis of the findings generated. In particular, this should contribute to reducing the current sharp increase in burnout diagnoses among social workers.