The concept «power» has a significant status in the system of global regionalism. All concepts of political research originated in different branches of knowledge. Despite the great attention of scientists, the specific definition of this concept and the various approaches of the academic community cause the complexity and inconsistency to study the concept «power» in political science. Geopolitical space in this century is changing and the challenge of the phenomenon is to make an attractive country image. The national idea and mission of it can be concentrated and used by soft power mechanism in practice. «Soft power» has a goal to create motivation for action and make a decision by an object that has a «soft» effect. Therefore, to study indirect impact on the countries’ politics becomes the most burning. This work analyses the methodological genesis of the concept «Soft Power», gives the features of some theories considering the concept «power», including: classical, political, offensive realism, liberalism, democratic peace, the theory of international organizations, etc.