This paper aims to evaluate the sources of Russia’s soft power as a tool which should enable to integrate more closely Belarus with Russia. The research question is the following: what are Russia’s main sources of attractiveness, and what kind of instruments of soft power is the Russian government applying to achieve that aim? To what extent was this soft policy successful? The author applied the qualitative research method. It is inductive and allows the researcher to explore meanings and insights of the notion of “soft power” applied by Russia in its foreign policy toward Belarus. Its basis lies in the interpretive approach to the present reality of Russia – Belarus political and economic relations and in evaluating Russian efforts to integrate its closest neighbour using only non-military means.