By using the principal components analysis and cluster analysis methods, this paper points out that industrial development space difference in the west part of China comes from comprehensive effect of multiple factors. The higher extent of private economy develops, the higher extent of economic marketability becomes, the greater the potential of industrial development is, the greater average scale of enterprises is, the higher development level is. Furthermore, regional factor is also an important factor to cause industrial development space difference in the west area. Private capital should be used as the leading factor to promote industrial development of the west.