Foreign trade, also known as "foreign trade" or "import and export trade", referred to as "foreign trade", refers to a country (region) and another country (region) between goods, products, and services. Foreign trade" refers to the exchange of goods, labor and technology between a country (region) and another country (region). This trade consists of two parts: import and export. For the country (region) that brings in goods or services, it is import; for the country (region) that brings out goods or services, it is export. This in the slave society and feudal society began to produce and development, to the capitalist society, the development is more rapid. Its nature and role is determined by different social systems.