Constructivist approach of analyzing international relations brought many new elements to the thought on the nature of international reality, which made it possible to explain it and understand it better. One of these elements in the process of analyzing this reality is the concept of identity of participants of international relations. Its analytical phenomenon consists of the fact that it allows us to undertake attempts to understand interests and character of norms and values of participants of international relations. The most important statement brought to scientific thought on international reality by Alexander Wendt’s notion of constructivism relates to the fact that states’ interests in international relations are not given a priori, but they are shaped during interactions with others. Not only is the role of inter-state actors who influence states’ interests in international relations underlined, but it also indicates the important role of other participants of international affairs in articulating national interests. From this perspective, the category of identity in international relations taken up by Constructivism takes account of the social, interactive nature of international reality making it possible to analyze its intangible part.