In Germany it is not clear which forms of community mental health care should be encouraged to meet the needs particularly of the severely mentally ill. We performed a literature review of systematic meta-analyses and controlled trials and show that a set of well-evaluated and effective psychiatric care systems is available, of which only a few are being implemented in Germany. It becomes obvious that in Germany organizational requirements for an integration of psychiatric services are not being adequately met, particularly in the case of schizophrenia. Team-based assertive community treatment, crisis intervention teams, community mental health teams, and modern job rehabilitation programs, which have been established primarily in English-speaking countries, could not be effectively adapted for German psychiatric care. At the same time many psychiatric care models have been poorly evaluated. Given the available scientific evidence we comment on future requisites and further developments in German psychiatry to meet the growing need of care for people with severe mental illnesses.