Of all the ways in which a country communicates abroad, public diplomacy has the greatest effects on the image of the country, as it directly influences public opinion in a particular country and thus contributes to the creation or change of their perception. Public diplomacy is the government's process of communicating with foreign audiences in an effort to bring about an understanding of the ideas and ideals of its nation, its institutions and culture, as well as national goals and current policies. Foreign relations are considered to be one of the most important state functions whose main function is the realization of the inalienable privileges of supreme state bodies. Therefore, each state designates the persons and bodies responsible for international communication and the representation of the country in general for the development of international activities. Protocol and ceremonial are an important segment of state administration, especially in its role in the field of international relations. Since, by adopting certain conventions, States have undertaken to abide by the generally accepted principles of mutual treatment, and how the mutual treatment of States through their representatives is called diplomacy. The aim of this paper is to show the readiness of the protocol of the Government of the Republic of Croatia in organizing events at the highest state level. Equally, the aim is to show the role of media relations in the media coverage of the Banka Palace protocol activities at the highest state level. Through the case study method, the author will analyze the comparison of the case analysis - the arrival of the Chinese Prime Minister in the Republic of Croatia, or media coverage on Croatian radio and RTL television.