摘要:The article deals with the issue of reducing the importance of the Russian language in the world. Culture is the total social experience of humanity, and language is a means of accumulating, storing, and transmitting this social experience, scientific and everyday information. It is a means of objectifying human consciousness, the continuity of generations, and their historical experience. Until 1991, Russian was the universal means of interethnic communication on one-sixth of the land. The refusal to learn the Russian language in some post-Soviet republics has led to a decline and even to a drop in the level of education and culture in general. The research aims to analyze the Russian language position as the core of culture and education in the post-Soviet space as a means of cross-border cooperation, development of education, and dialogue of cultures. The study has been conducted for 10 years in the South-East of Ukraine. It seems to us that the language situation in the Donbas can be projected with some degree of similarity to the entire post-Soviet space. To determine the principle of the state language policy of the post-Soviet republics, we used the analysis of Ukraine’s legal documents in the period from 1991 to 2020. The presence of a common cultural space and language will help preserve peace and prevent war on the Eurasian continent. The common language space contributes to the development of economic, social, educational, and as a result of geopolitical ties.