The study aims to present and compare school social work in Hungary and the United Kingdom. The aim of the research is to get to know the activities in the two countries in more detail, pointing out the similarities and differences in practice. The research questions shed light on the conditions of the operation of social work in Hungarian and British schools, the cooperation of the social worker with the educational institution, and the activities carried out there. We conducted semi-structured interviews as a method of research with 14 social workers in close contact with schools and specifically school social workers. The operation of mental health teams organized in educational institutions not only serves to protect children but the establishment and coordination of such a professional team can also increase the acceptance and influence of the school social worker in the institution.