In this article, the role and functions of belief, its importance in the development of society were analyzed. The functions of belief are the ways in which belief influences people’s lives. We adhere to one of the points of view according to which there are four main functions of belief. They are basic in the sense that they can be divided into subfunctions. The functions of belief differ from each other in the answer to the question through what (or - how) they influence the life of people. The article highlights the following functions, such as the worldview function, the political function, the culture-transmitting function and the moral function of belief is a way of influencing belief on people’s lives through the promotion of moral norms.