In this thesis, it will be explained how ideological repression was being conducted in Croatia in the early period of the communist Yugoslavia. It investigates the regime apparatus of an ideological propaganda type and its activity towards the public sphere - mainly media, culture, art and science. The table of contents will demonstrate the characteristic of the communist government as well as the instruments of its ideological repression, mainly through the Agitprop and Narodna fronta activity. It will provide analysis of possibilities of independent creativity or inability of former. The time period from 1945 up to 1952 is one of the most turbulent periods in Croatian history, especially in the context of the political repression which was at its strongest point. The timeline of the topic thesis begins in 1945 - the year of the establishment of the new Yugoslav state and communist government and ends in 1952 - the year of change of cultural politics with the appearance of some new ideological guidelines from the topmost part of the communist government. Yugoslav Communist Party had profoundly changed the political system introducing socialism and single - party communist system with totalitarian features, in which the political parties that were active in the period between the two great wars were outlawed. Its main mission was the creation of the brand-new social order as well as creating a new public opinion. Its rule was accompanied by powerful propaganda regaining absolute control over the entire social life; media, culture, art and science with a goal of spreading official state propaganda. The main goal of this thesis it to contribute to a better knowledge of the communist system as well as the political repression which was carried out primarily on a political level in Croatia. The thesis is based on the historiographical method and the analytical explanatory patterns of the school of the totalitarian model (authors: Richard Pipes, Stéphane Courtois, Gerd Koenen). The thesis is mostly based on homeland and foreign published literature and published sources.