This paper emphasizes the method of case management and the role of this method in social work practice. This method is used to treat people with psychotic disorder who are more difficult to work with often hospitalized and have greater difficulty in social and work functioning. Using of this approach is important when the user requires a larger number of social welfare or health services. We distinguish several models of case management. Some of them are: clinical model, the model of personal empowerment, rehabilitation model etc. In Croatia, psychiatry in community is faintly developed, and the implementation of case management involves elements of clinical, assertive, and rehabilitation models and models of personal strengthening (personal empowerment). Social work is a profession that promotes social change, empowerment of people and solving problems in interpersonal relationships. Case management is a method of social work that evaluates needs of users, plan and coordinate services, carries out monitoring and evaluation, and it is considered to be cooperative and trans-disciplinary practice. Case management in social work practice is used to assess the needs of the users and their families, and aims to improve the functioning of the user and his/her welfare. Relationship between the case manager, social worker and the user is very important in the process of the implementation of case management.