Abstract. The changes taking place in the region and in the world require Belarus to clarify its ideology. Belarus is experiencing a multi-vector ideological impact. The article analyzes the main factors of influence. The method of research is a comparison of external and internal factors. The question of the ideology of the Union State has been raised. The analysis shows that cooperation with Russia, primarily within the framework of the Union State, continues to be the key to the sovereignty of Belarus and the preservation of its identity. A joint Russian-Belarusian study of the possibilities of ideological strengthening of the Union State is becoming urgent. More broadly, a conceptual and practical revision of the main approaches of Russia and Belarus to key points of global development is needed.