Education plays an important role in the overall development and sustainable development of all societies, a truth universally acknow-ledge by intellectuals of all scientific fields, and as such, this idea is nothing. The question that should be discussed is that despite the fact that almost all societies develop education and educational processes through relevant institutions, visible differences still emerge between different societies.
Why does this happen? How can we explain that some countries have sustainable development at a high level, have a developed demo-cracy, economic prosperity and a good education system, etc? Which factors affect the improvement of quality of social and political proce-sses in society, including education? We must consider that a wide variety of dimensions can play a role in this discussion, including histo-rical, geographical, philosophical, political, etc. Nevertheless, research in numerous studies by social scientists indicate that an important factor for the achievements of some countries in all spheres of social and political life have attributed the presence of social capital at high levels in those societies. This paper will address precisely this concept of social capital as a social value that helps improve the quality of all social processes. A content analysis will be conducted of the role and impact that social capital has on educational performance, while at the same time consi-dering the role of quality education in sustainable development.