Being a member of the international society, the State can not be irresponsible for its actions. At the same time the peculiarity of international responsibility is joined to the peculiarities of the international law and its subjects-sovereign states.The understanding of the mechanism of application of State’s international responsibility and its relation with sovereignty shows the validity and the efficiency of the international law.The realization of the responsibility is regarded in this research as a process taking into account different criterions: as the realization of elements of responsibility (application of coercive measures), as a process of attribution of responsibility (a process of attribution to a State the acts of other subjects of the international law) and as a realization of phases of the responsibility (questions related to the court procedures and to the execution of the international awards).This research considers the correlation of these two legal concepts in two aspects: on the one hand, if the Sovereign state by using the principle of sovereignty can escape the responsibility and what are the mechanisms to prevent it, and, on the other hand, how the realization of responsibility could touch or even violate the sovereignty of the states.