The article grounds the objective conditions for the formation of the process of internationalization in the system of international economic relations as a process of social production beyond national borders due to the international division of labor. The author identifies and explaines characteristics as diversification, diversity, extensiveness, contradiction, unity, synergy, integrity and intensity, of current trends in international economic relations, namely internationalization, transnationalization, economic integration, differentiation, globalization, global integration in the formation of global economic environment. The difference between internationalization and globalization as processes conserning the evolution of economic relations between countries is explained. The main distinguishing feature between the two processes can be considered the level of preservation of national sovereignty. The levels (stages) of the internationalization process at the micro level of international business operations are determined, as well as the development of business internationalization at each stage. They are the initial stage, the stage of local market expansion, the transnational stage and the global stage. While developing internationalization, the forms of international business are changing (becoming more complicated) – from the international trade to the global company. The article highlights the main objects of economic internationalization of international business development: the sphere of exchange of production results; the sphere of exchange of factors of production; the scope of the actual production process. There are three stages of international business development in accordance with the objects of economic internationalization of international business development. At the first stage the main sphere of international business is the export-import activity of a private company in the foreign market, at the second stage the main sphere becomes the system of international movement of financial resources, at the third one there is the development of entrepreneurial activity in global competition.