The silk road is the most important channel of the ancient East and West trade. It has its extensive international influence. Global integration is the development trend of the future, and is of great strategic significance by promoting the Silk Road Cultural Soft power. It is conducive to the expansion of the Modern Silk Road culture influence, and is helpful to improve the regional brand of the Silk Road, it is conducive to the promotion of regional economic growth. Construction of soft strength is depth research of the Silk Road, through constructing reasonable multi-dimensional system, constantly improve the soft power of ecological environment. The Silk Road-spirit is rooted in the culture, through the construction of the Silk Road culture; to strengthen the Dun huang culture as the core of the Hexi corridor culture recognition and memory. Way of construction of the Yellow River culture is the core of the Chinese civilization inheritance, innovation, and enhances the core competitiveness of soft power of the Silk Road.