In the thirteenth century,Xinjiang changed from traditional western frontier of China into the core area of the empire with the rise of the Mongolian Yuan Empire.The communications extended in all directions and the guaranteed stage transportation make the Empire Unite the whole nation and reconstruct the Silk Road.It makes Mongolian Yuan Empire flourish by breaking barriers,multi-interaction and blending,which vividly reflects the spirit of the Silk Road,promotes the formation of the Chinese nation and contributes to the development of human civilization.