The article reviews standards of state policies in terms of the national security of the European Union countries. The authors provide a comprehensive analysis of the theory and practice of providing national security in the EU countries. In addition to that, the article provides for a deep analysis of the major methodological approaches in regards to establishing national security in the EU. The authors make a systematic review of the development and implementation of the EU security doctrines. The aim of this research article is to analyze the development of the idea of developing a European defense policy to find an effective way of incorporating our state into European security structures. Also, the research question may be posed as discussion on the way the national security is guaranteed in the EU countries. The novelty of the study is in the way how the past, current and future national security setup is implemented in the EU countries and what may the ways of its development. Materials and methods used in studying this problem, researches and publications of such domestic and foreign researchers were used. At the same time, processes of global and European security need constant analysis and study. The results showed that the problem of the formation of the European security and defense system that emerged shortly after the end of the Second World War prompted European countries to work more closely together, particularly in the defense sector. After the Cold War and the emergence of new challenges for stability on the continent, the EU has embarked on a path towards greater consolidation and greater awareness of own defense and security interests. Conclusion of the article is that an analysis of the approaches to the national security in the EU convincingly demonstrates that the level of security depends on many factors. The successful provision of national security strategy and approach depends on the sustainability and strength of their national economies. Only a strong economy allows successfully defending national interests in growing global competition and world economic disparities. Therefore, a country shall not only develop a national security concept, relying on world experience, but, above all, to reform its domestic and foreign policies with a view to protecting all actors.