In China，the distribution of international investment（mainly refers to FDI）is extremely obvious that most of them distributed in east part of China，less in central part，and least in west.Under the pressure of both unbalanced development of economy and unbalanced distribution of FDI，attracting FDI is deemed to the bottleneck of economic development in west part of China.The scale and speed of attracting FDI are considered as the goal to realize economic growth by western government.Global financial crisis happened in 2007，so the pattern of economy has changed over the world.Because of the less demand of the western developed countries，the way of economic growth by attracting FDI and export-leg growth receives the challenge.Therefore，the strategy of through attracting FDI to promote economic growth only is quite passive.Based on the initial condition of western economy，western market has great potential.First，to put key point on expansion of endogenous demand，then FDI could use as a kind of addition for economic development.Rapid growth of endogenous demand and mutual development of rational financial ecological environment are the necessary and sufficient conditions for improving employment and realizing sustainable development of west part of China’s economy.