Abstract: This paper estabilishes the superior model on the foreign investment of the infrastructure and makes a qualitative game analysis on the scales for the infrastructure investment both home and abroad. Based on that, this paper makes a further study on the causes of the present policy background. The relative qualitative analysis is also made. It is concluded that the investment on the infrastructure from foreigners is far beyond expected and some suggestions on how to attract foreign investment to the West are made to provide a reference for the policy makers.