The Jiaohe(Yarghol) Ruins located 10 km west of the Turpan city. It is a natural fortress located on the top of a steep cliff a leaf-shaped plateau between two deep river valleys. The river water was distributed in different directions surrounding the city and therefore named Yarghul in uyghur language and Jiaohe in Chinese, meaning ‘confluence of rivers’. As the political , economical, military and cultural center of this area, Jiaohe was the capital of kangkil Former Kingdom, one of the thirty six kingdoms in the Western Regions. Jiaohe ruins were first built by the people ofkangkil( Cheshi), about 2,000-2,300 years from now. Because of the erosion of the river water, the periphery of the platform became precipice as high as 30 meters, therefore it was very precipitous and easy to guard which made it become a place fought for by armies since ancient times.