In this thesis, I addressed the topic: "European economic integration, labor market and migration." The labor market has been thoroughly researched, and migration further explains developments within the EU. The main economic effect of regional economic associations is market integration and increased competition through trade liberalization. Regional integration implies the liberalization of the movement of productive factors of labor and capital. Further economic integration affects the economic growth rate of member states. Trade integration indirectly leads to competition between labor markets. It affects labor markets in two ways. It creates winners and losers, and changes production patterns that require labor market flexibility to avoid job losses. In general, countries with more flexible labor markets have a comparative advantage in commodity markets. In all parts of the world, regional integration of countries is increasingly taking place. Due to this, there is an increase in labor migration worldwide. Migrations affect the country of origin and the country of destination. Migration is another form of integration. From an economic point of view, it allows for a more efficient allocation of resources, but there is the issue of brain drain. This poses a major problem for developing countries as the, loss of highly educated people going abroad represents a reduction in the accumulation of human capital and knowledge. Such a loss is greater than the loss of investment in the education of immigrants, and results in a reduction in the economic growth of developing countries. This paper will explore the impact of regional integration on labor mobility.