Yinxi railway is the first railway crossing the hinterland of the Shaanxi Gansu Ningxia revolutionary base area. The main line has a total length of 599.10 kilometers. The line starts from Yinchuan, the capital of Ningxia Hui Autonomous Region in the north, passes through Lingwu City and Wuzhong City, passes through Huan County and Qingyang City of Gansu Province in the south, enters Shaanxi Province, and connects to Xi'an north passenger station through Binxian County, Qian county and Xianyang International Airport. In December, 2018, the Huianbao test section of Ganning section of Yinxi railway began track laying