The Chinese economy continually growth and the world economics growth asthenia as well as US dollar unceasing depreciation, specially American Government in the situation which the domestic unemployment rate and the international trade trade deficit rise unceasingly, American some people the American manufacturing industry worker will be unemployed with the China and America trade deficit reason sums up as the Renminbi exchange rate First, the Renminbi exchange rate is not the China and America trade deficit principal factor 1st, China and America balance of trade series analysis The China and America statistical figure difference so greatly mainly has two aspect reasons: (1)th, when American statistics China through Hong Kong partial transit trade repetition computation in China to US's exportation aspect. (2)th, American trade data collection process existence very many questions. 2nd, the China and America trade deficit is any reason creates (1)th, American Government to the high-tech product exportation control policy, is the Chinese and American trade not balanced important reason. (2)th, US the multinational corporation which invests in China is a balance of trade important reason.Although China has the high trade surplus to US, but these trade surplus very major part comes from US in China's multinational corporation, demonstrated according to China's statistical data: In the Chinese import and export volume 56% is realizes by the overseas-funded enterprise, China is becoming US's multinational corporation to reduce the production cost, one of increase profit main channels. (3)th, US's trade statistics report has not collected the multinational corporation the American domestic investment income computation 3rd, tucks up the American foreign trade deficit the veil US's import comes from massively our country company in the production line which overseas sets up, in other words, American Multinational corporation from the overseas subsidiary company input cargo, the realistic trade many all is the company and the company, but non-country and country single card trade. English economist Julius on once to American trade revenue and expenditure statistics in, if adds on its overseas subsidiary company in the local repetition computation, that, in 1986 US's trade revenue and expenditure on became 57,000,000,000 US dollars earnings from 144,000,000,000 US dollars trade deficits.Also according to the American Department of commercial affairs statistics, in 1995 the American Multinational corporation subsidiary company sales volume surpassed 210,000,000 US dollars, in addition commodity service export amount 794,000,000,000 US dollars, nearly amounted to 3 ten thousand hundred million US dollars in the same year, but the foreign country exports and the foreign corporation to US in US's subsidiary company internal sales volume sum total is 2,400,000,000,000 US dollars, today US is not the world biggest trade deficit country, but was in the world one of minority several big trade surplus countries. US to the overseas export amount and the American Multinational corporation's in foreign market sale, both sum 2002nd year amounted to 3,000,000,000,000 US dollars.Same time, US's import amount and the foreign multinational corporation's in American market sale, both the sum is 2,400,000,000,000 US dollars, thus has created US to various countries trade gross profit 600,000,000,000 US dollars, this is analyzes when the American foreign trade deficit should comprehensively grasp the question the essence to be at. 4th, US trade deficit true reason (1) 20th century 70's, because two petroleum crises cause the world oil price two large rises, in addition comes from Japanese and the developing nation strong economical competitive power and the US dollar exchange rate strong trend of, these all caused the American commodity, the service trade deficit to achieve 152,000,000,000 US dollars peaks in 1987. (2) US worsens the low savings ratio, US must raise the construction fund from the international money market, namely allows temporary credit the fund to carry on the massive investment construction. (3) American Multinational corporation “the person on one's own side” who acts in the American import trade the role, namely the partial trade deficit in fact is “the commodity backflow”. China and US are a supplementary economy, maintains the existing exchange rate system is the win-win situation