The aim of this diploma thesis is to show the communication of the Croatian Parliament with the public and to establish level of citizens’ informing about Croatian Parliament work. The Croatian Parliament is the highest citizens representative body and legislative authority in the Republic of Croatia. Its image is also based on communication with the public relation services. In accordance to the Constitution and other regulations, the Parliament informs the public about its work through its Media Service and the Citizens’ Service. The Media Service ensures media reporting of the Croatian Parliaments work and it provides all relevant information on the website of the Parliament. The Citizens’ Service is responsible for direct communication with citizens. The previous researches have shown an extremely low level of citizens’ confidence in the Croatian Parliament as an institution. Necessity to explore whether there was a link between the means of communication, confidence and level of citizens’ informing was realized. The low level of citizens’ informing regarding the Croatian Parliament was showed in this research. The most often means of citizens’ informing on work of their representatives and the Croatian Parliament are through TV, social networks and newspaper articles. The rarest means of communication are through Parliaments website and its Citizens’ Service. Information access through social networks, as the most often means of citizens’ informing, could be facilitate by the Croatian Parliament in the future. The present, mostly one-way communication of Croatian Parliament with the public, would be upgraded and improved.