Abstract: The contemporary geological idea about the “Silk Road” first appeared in the later period of the Soviet Union; after the collapse of the Soviet Union in 1991, the newly independent countries in Central Asia-Caucasus first advocated the conception of “Large Silk Road”, which was supported by the western countries (Europe and America). Afterwards, America also advocated the conception of “New Silk Road”. In September 2013, the national leaders of China proposed the idea of jointly building “Silk Road Economic Belt”. The re-examination of the formation and evolution of the “Silk Road” conception can help recognize the value and significance of the “Silk Road Economic Belt” conception as well as the strategy of China to Central Asia and the international relationship of the Central Asia.
Keywords: Silk Road; geological conception; Central Asia; strategic balance