<p> This article discusses factors of sustainable socio-economic development and its level in the EU countries, taking into account that ensuring sustainable socio-economic development of the world in today’s transition to an innovative model of development requires implementing of modern innovative ideas, developments and science-based technologies and evaluation was considered. The study uses evaluation which is based on a distance from average solution (EDAS) to determine which countries have the highest levels of sustainable socio-economic development and those having the lowest indicators, and to rank countries by these levels. The article also identifies the strengths and weaknesses of the countries based on the results of the assessment, and provides conclusions and recommendations for further improvement of the position of these countries in the ranking.</p>