With the deepening of the reform and opening up, Chinese export structure is getting better step by step. Economic and trade also get a sustained and rapid development and present a trend of globalization, information, marketization and integration. The increase of the foreign commercial enterprise promotes the export of China. The development of foreign direct investment, the rise of multinational corporations, the proportion of intra-industry trade and the deepening of international division of labor also attract widespread attention for the relationship between the direct investment and trade. However, it is obviously necessary to do the theoretical research and empirical analysis to accurately assess the positive effects brought by the trade of foreign direct investment. About the foreign direct investment how to impact China's trade structure is subject to our objective evaluation which is based on China's import and export trade statistics. Therefore, this article starts from the angle of the investigation of the present status of the export trade in China by comparing the domestic and foreign research status quo of foreign direct investment crude foreign direct investment on China's export trade structure optimization, the influence of the empirical analysis of FDI to our country export trade structure optimization, and based on this, advances the effectiveness of the optimization of the structure of export trade in our country's policy and the suggestion.