Since the reform and opening up, especially since the 90s of the 20th century, China's foreign direct investment has made great achievements, China has become the largest foreign investment in developing countries for 18 consecutive years. At the same time, China's foreign trade exports increased rapidly, 2002 - 2007 China's export trade with an average annual growth rate of 28.9%. Large influx of foreign direct investment will bring great benefits to China's trade impact.
Firstly, the paper briefly reviewed FDI in China, and then briefly related to the classical theory of foreign direct investment, foreign direct investment focus on exploring the benefits of foreign trade in China. Econometric model of the FDI into China's foreign trade income on the relationship between the empirical analysis, FDI in China's foreign trade income derived complementary effect. Through this analysis, I hope that it can help to solve the FDI impact on our foreign trade income.