In the article the concept of state functions, realizing which the state carries out a targeted management impact on various spheres of a public life. They show that the government should do to achieve and implement the goals and tasks that lie before him in a certain historical period. Purposes of the functions of the state are the results that must be obtained in implementing the functions, goals can be immediate, intermediate, ultimate. On one stage of historical development, priority may be given to economic, the other political or socio-cultural functions, the third function of defense, etc. At the beginning of its inception, the state played a very small list of functions. The contents of most of them was of a pronounced class character. The functions manifest national characteristics of the country, because the state is obliged to provide the geopolitical interests of the ethnic group, to support the development of national culture, language, and the like. The contents and the list of functions to a large extent depend on the nature of the state, its social purpose in public life. The main duty of the state to maintain a level of social organization that would ensure not only the preservation of the integrity and prosperity of society as a whole, but also the needs of individuals. The article studies scientific approaches with respect to interpretation of the concept of functions, given the existing classification of state functions: the areas of activities of the state, duration and the like. The analysis of existing functions in Ukraine. The human rights function is currently the most relevant. Advocacy function has the expression in activities that are aimed at protecting the rights and freedoms of man and citizen, the rule of law and the rule of law in all spheres of public and political life. The peculiarities of exercise of the functions of the state are divided into legal and organizational. The legal form is a homogenous activity of state bodies related to the adoption of legal acts. Organizational form is a homogenous activity of the state aimed at creating organizational conditions to ensure functions of the state. In Ukraine there are three main forms of implementation of the activities of the state depending on types of activities: legislative, Executive, judicial. The basis for this separation is the provision of the Constitution of Ukraine, which is highlighted in these branches of government. In the implementation of all main functions of the state are actively involved all types of public power in Ukraine.