Foreign direct investment (FDI) plays a very important role in China s economic develop- ment.Based on the distribution of FDI in the east and west areas,by establishing linear regression model between FDI and fixed assets and domestic gross production (GDP),this paper analyzes linear relation between FDI and fixed assets and GDP from the statistical angle to reveal the strong driving force of FDI in economic development,and gives suggestions for optimizing foreign direct investment and de- velopment in wes...