Since the concept of sovereignty was created till nowadays it has been undergoing permanent transformation. Presently, the consequences of this phenomenon follow from the intensive influence of the processes of regional integration and globalization on the way states function in the modern world and political reality. Therefore, contemporary states have to face and manage in practice not only the change of the notion of sovereignty itself and its scope, which is natural during its several centuries’ evolution, but they also have to cope with serious effects and far-reaching impact of these transformations on their political systems and legal orders, as well as all other areas of their functioning, including the contents of their national basic laws and fundamental constitutional principles. Non-depending on the degree and activeness with which the states involve themselves into the abovementioned processes, they have to naturally make themselves open to them anyway, which is frequently reflected first and foremost in the texts of the national basic laws and the way their main values and principles are interpreted. The analysis of the changing concept and scope of contemporary states’ sovereignty has become the main objective of the hereby paper. Its subject focuses on the analysis of the origin and development of the notion of sovereignty, as well as other related to it concepts, along with their impact on the way contemporary states function.