Abstract: The author of the article studies the development of the idea of military security in Russian politico military thinking during the post-Soviet period. The author provides the critics of the logic and contents of this definition provided in doctrine documents of the Russian Federation. The author concludes that, despute the fact that the process of development of the conceptual framework of politics in the sphere of national and military security has been completed, the terminology used in this sphere is still far from being perfect and needs further development It has been only the first step towards global changes and Russia's need in a new system of national and military security. In the future, the author plans on clarifying associated definitions and terms and even changing their contents for a more reasonable one at the doctrine and operational levels.