The international trade is a creation under the certain history condition and develop.Two basic conditions which become international trade are: (1)The development of social proctivity; (2)The formation of nation. The development of social proctivity proces to used for a switching surplus merchandise, these surplus merchandises exchange between the state-to-state, proced international trade. The international goods trade belongs to merchandise commutation scope, with domestic trade on the property combine all together, but because it is at the different nation or the region carry on, so compare with domestic trade to have a following characteristics: 1.the international goods trade want to involve difference and conflict that different nation or region probably exist in the policy measure, law system, and the language culture, social custom etc. bring of difference, the problem involve far compares domestic trade complications. 2.the international goods trade of bargain amount and amount of money be generally more big, conveyance distance farther, implement time longer, so trade both parties undertake of the risk far wants to be greatly than the domestic trade. 3.the international goods trade is easily subjected to bargain both parties place nation of politics, economy change, bilateral relation and international situation variety etc. conditional influence. 4.in addition to trading both parties, international goods trade also cooperation that need to be involved sections, such as conveyance and insurance, bank, company's check, maritime customs...etc., match, process compare the domestic trade want to be complicated of many. It mainly is to carry on international trade and domestic trade some contrasts here.International trade and domestic trade since exist intercommunity, and then is very greatly distinct, the international trade is more more complicated than domestic trade. International trade history: 1, from formality, Instrial Revolution period of international trade with direct export goods is lord, but two post-war directly invest in the foreign country main current; 2, from the contents, the period international trade of the Instrial Revolution has occasionally, pure, the unilateral rent service output or the merchandise output, the trade involve of the merchandise mostly instrial finished proct and entry-level raw material.Two post-war, the international trade form is diverse and the merchandise layer be abundant and cover three greatest instries; 3, from the organization, the Instrial Revolution is period to lack International Trade Organization and export mostly amateur by chance, few exclusively be engaged in the company of trade conversion, divide the work not thin.Two post-war, established WTO etc. coordination all countries trade, establishment trade principle, and the multinational company basic Long break international trade and divide the work very thin; 4, from the scope, the period international trade of the Instrial Revolution usually limits at an of colony and suzerain state, capitalism nation, and concerns noodles narrow.(point people)Two post-war, the whole world is subjected to a spread, have no which nation place oneself at the international trade outside; 5, from the consciousness appearance, Instrial Revolution the period mercantile system be more widely accepted and the turn of capitalism nation shares colony;Two post-war, although once appeared Cold War the trade of the two greatest camps with each other not contacts, basic carry out free trade.