直到本世纪初叶,由山海关至沈阳的铁路没有开通之前,辽宁西部一直是沟通关内和东北广大地区的咽喉要道。特别是满族统治者取得全国政权定都北京后,辽西就成为其连接东北“龙兴之地”的血肉脐带。清朝历代皇帝回盛京（今沈阳）祭祀开国先祖努尔哈赤,走的就是承德——朝阳——锦 Until the beginning of this century, before the railway from Shanhaiguan to Shenyang was not opened, the western part of Liaoning Province has been the throat of the Gansu-Inner Mongolia and the vast Northeast China. In particular, after the Manchu rulers obtained the right to establish a national power in Peking, Liaoxi became the flesh and blood umbilical cord connecting the northeast “place of Longxing”. The emperors of the Qing dynasties returned to Shengjing (now Shenyang) to worship the founding ancestor of Nurhachu, Chengde is to go - Chaoyang - Kam