The article is devoted to analysis of origins of the Euro-Atlantic course formation in Ukraine, stages of its realization, directed on our state enter EU and North Atlantic Treaty Organization. The central line of the paper is to investigate the formation of the legislative national base of Euro-Atlantic integration of our state, including fixation of the Euro-Atlantic course in the Constitution of Ukraine for gaining membership in the European Union and North Atlantic Treaty Organization by our country. The special attention is paid to the place and role of the Frame document “Partnership for peace” (1994), Charter of special partnership between Ukraine and North Atlantic Treaty Organization (1997), Declaration about addition of the Charter on special partnership (2009). One of main stages of this process is a declaration in 2005 about the striving of Ukraine as a participant of “Partnership for peace” for gaining membership in NATO and creation of the Commission Ukraine-NATO. Activation of the dialogue between Ukraine and the Alliance and realization of reforms by our country gave heads of states and governments of NATO reasons in 2008 at the meeting of the Northern-Atlantic council of NATO to accept a decision that Ukraine will become a member of NATO in future. Braking factors of the process of Euro-Atlantic integration of Ukraine in 2009-2019 are indicated in the article. After 2014 Ukraine activated steps, directed on preparing to entering NATO by realization of annual National programs of cooperation NATO-Ukraine that provide realization of concrete arrangements of the legal, political, economic, protective, defending, military and resource character for attaining correspondence to criteria, norms, principles of NATO and EU in the socio-political sphere, especially prevention and counteraction to corruption, implementation of principles, realization of NATO programs for integration, transparency, accountability, introduction of honesty and decrease of corruption risks in the activity of defending institutions.One of important links of realizing the Euro-Atlantic integration course of Ukraine is the improvement of the legislative base, especially acceptance of a series of anti-corruption laws and creation of correspondent bodies. A special importance in strengthening the Euro-Atlantic course belongs to introduction of changes in the Constitution of Ukraine about irreversibility and stability of Ukraine’s strivings as to entering EU and NATO in 2019.The paper analyzes problem questions of Ukraine’s integration to EU and NATO and also formulates conclusions