This diploma thesis called "The role of the nonprofit sector in the mental health care" deals with problems expressed in the context of nongovernmental organizations that are regarded as a significant stakeholder very important actors in the issue of mental disease. Besides the state that creates predominantly political conception concerning mental health and also mostly ensures some constituents of mental health care (i.e. in the psychiatric asylums) there is also nonprofit sector playing an important role. We can observe its importance on the level of creation of the new mental health conceptions as well as on the level of response to the continuing process of deinstitutionalization of psychiatric care manifested in wider approach to mental disease and moreover its services with which the nonprofit sector completes and sometimes substitutes the role of the state. This thesis firstly deals with the mental disease as the integral part of the complex state of health of each of us, which importance is often underestimated and consequently insufficiently reflected in mental health policy in the ČR (and not only here) which should follow the world wide trend of finding out the negative consequences of mental diseases. After grounding the nonprofit sector in social and legal frame I continue in analyzing and..