This dissertation is dealing with the rather small, but very interesting topic of child and adolescent psychiatry. Concerning the title of this dissertation “ Social work in the multi professional team of child and adolescent psychiatry ”, the following question is arising: “What ist the importance of social work in this context and how effects social work the process of recovery?“ In my dissertation I picture the structure of child and adolescent psychiatry, I enlarge upon the basic principles, aims and tasks, and elaborate on the multiprofessional team. I also present the legal aspects of the work in a child and adolescent psychiatry briefly. Furthermore, I explain the role and position of social work regarding hospitals, whereas I primarily put my focus on the specialization of clinic social work and teamwork . One main point of this dissertation is the description of the tasks of social work, which I’ll picture, by giving examples of regional concepts. On the basis of task description, the last chapters elaborate on the applied methods of social diagnostics and psychosocial interventions in the context of child and adolescent psychiatry. Methods of diagnostics are primarily network-diagnostics, biographic-diagnostics and lifelong-diagnostics. In addition to that I highlight social therapy, social groupwork, social competence training, psychosocial counseling, crisisintervention as well as networking and work with relatives and parents, as primary psychosocial interventions in the context of treatment. Furthermore I’m outlining aspects of youth services planning and the outreach work.