The article found that the Ukrainian diaspora was an integral component of Ukrainian ethnic integrity. Numerous public, cultural and educational institutions created by emigrants in their places of residence stood guard over Ukrainian national interests and, despite all obstacles, conducted fruitful cooperation with Ukrainians in the Motherland. In order to preserve and develop the Ukrainian language, representatives of the diaspora paid great attention to the release of the Ukrainian printed word into the world. Due to total censorship in the Ukrainian SSR, Ukrainians abroad contributed to the publication abroad of many Ukrainian works that were banned in Ukraine. By means of international tourism, international student exchange, and world radio broadcasting, contacts between Ukrainian and foreign youth were gradually established, and the spheres of communication expanded. The main task of the Ukrainian diaspora was to preserve the ethnic and cultural identities of the Ukrainian nation, and consolidate the scattered emigration forces for the sole purpose of preparing a political and professional basis for the acquisition of an independent, cathedral Ukrainian state.