This article aims to show the relationship between propaganda and public opinion. The author assumed that the model of the evolution of political propaganda is correlated with the process of forming public opinion. Public opinion is here treated as a recipient of propaganda content, as well as intermediary on the line: steering subject – society. Particular importance in shaping public opinion in the activities of propaganda is characteristic of modernity: mass media, mediatisation of politics, the growing importance of empirical research (surveys). In such case the public may be a factor in pressure on the ruling elite. It grows too often is the role of authority, which is the determinant of worldview to the public.