The economy of every country in the world is different and depends on a number of different factors. Some countries stand out for their excellence in the areas of living conditions and a high level of well-being, while for some other countries the situation is significantly different, some countries enjoy an average level of well-being, and some live below all levels where the inhabitants of a country face poverty. This graduate thesis specifically deals with the analysis of the relationship between economic growth and the HD index in the context of economic development in the countries of the European Union. Countries' economies often focus too much on GDP as a measure of economic growth and, consequently, economic development. The ultimate goal of economic growth and development should be to increase the standard of living of the population, taking into account the quality of life. For this reason, the aspect of sustainability is emphasized in contemporary economic research. There are more and more critics who believe that GDP is not the only indicator of the strength of the economy and, consequently, of economic development, which should lead to a higher standard of living, respecting the quality of life dimension. The human development index (Croatian: Human development index) is a measure used to show differences between countries, but in a way to shift attention from economic results to human development results, which should be a consequence of economic development Economic growth of a country and life standard are related concepts precisely because economic growth should lead to an increase in the standard of living, which implies an increase in the well-being of the population. The well-being of the population also implies the quality of life, which should be increased with the increase in the standard of living. The results of the conducted research indicate a positive relationship between economic growth and the HD index in all EU countries.