FDI has not become a positive factor in the economic growth of the west part of China and small amount of FDI in the west part of China expands the economic gap between the east and the west. The homogeneity of the economy in the west is low and regional economic integration has not reached. The disadvantages in market potential, region and regional scientific and technological innovation and so on affect the inflow of foreign capital. The improving infrastructure has positive effect on the inflow of FDI. Among the provinces and municipality in the west, on provincial level, there is obvious difference between FDI selective factors.