Protocol as a discipline is a set of prescribed and pre-established rules of good manners, communication and mutual dealings during political, economic and social activities of the state and its representatives, and other entities such as international organizations. First of all protocol presents guidelines of civilized behavior in dealing with mutual communication. Protocol and their compliance rules has a long and traditionally rich history, rules of the beautiful and civilized behavior was placed on special care and attention from the time of organizing the rich ceremonial occasions in the mansions of great rulers and senior statesmen. The importance of complying with the protocol stems from the fact that through abiding by the rules of conduct set by regulations that define protocol, first and foremost respect and honour are shown towards other states and their representatives, as well as other international entities. Protocol procedures and its strict respect are one of the most important preconditions for successful implementation of state diplomacy.Diplomacy is a discipline through which to promote the interests and power of the state, performance and diplomatic skills depends on solving the important foreign policy and international issues between the countries. The success of diplomacy in the international environment, among other things contributes to the well-organized diplomatic protocol. Diplomacy and protocol must be well coordinated and linked to in the eyes of neighboring countries, Europe and the world so we can create a positive image of the Croatia and what better way to promote its values and benefits. Successful diplomacy is the best promoter of our country, it best builds a positive image of the country and thereby creating a successful and recognizable brand in the Croatian international environment.