In this thesis, the focus is on the mental health policy, which is gaining increasing importance worldwide and continuously expanding its scope, given that global data indicate a growing prevalence of mental health disorders. After defining mental health and describing its determinants and disorders, te thesis presents the reasons for the significance of political investment in this field. Following a brief historical overview of the position of individuals with mental health disorders, the current state of mental health in Croatia and the world will be presented, along with a description of international and Croatian mental health policies. Since mental health policy is based on legal regulations in this area, both international and Croatian legislative frameworks will be described. The subsequent chapters will discuss national strategies for mental health protection, including an overview of the previous strategy "National Strategy for Mental Health Protection for the period from 2011 to 2016" and the current new Strategic Framework for Mental Health Protection until 2030". Finally, the thesis will explain the importance of the involvement of social workers in the field of mental health and the policies addressing it.