Career development is formed and developed in the stage of human society development to capitalism. It is the initial form of international economic relations and the international exchange of goods. As early as in the 14th and 15th centuries, capitalism appeared in some countries along the Mediterranean coast, and international exchange of goods was more frequent than before. From the 16th century to the middle of the 18th century, with the development of capitalism, the great discovery of geography, the expansion of colonies and the primitive accumulation of capital, the international exchange of commodities developed considerably, and the emergence of international division of labor. From the mid-18th century to the 1970s, developed countries in Europe and America completed the industrial revolution successively. With the establishment of capitalist mode of production, the emergence of large machine industry, the demand for a country's domestic production and market has been unable to meet. Some advanced countries urgently need to go abroad to find sales markets, raw materials and sources of livelihood. At this time, the great development of the transportation industry promoted international economic exchanges. Therefore, the formation of advanced countries to backward countries a large number of sales of industrial products; The natural economy of the backward countries has been gradually broken down into the pattern of dumping industrial products and providing raw materials, grain and labor bases for the advanced countries. The division of labor and opposition between industry and agriculture in a country began to transform into the international division of labor and opposition between industrial countries based on advanced technologies and agricultural countries based on natural conditions in the world. As countries and regions with different levels of economic development are involved in the scope of international division of labor, through the international exchange of goods, the economies of all countries begin to build a whole, and the world economy takes initial shape.