In the process of constructing the third pole urban system centering Shijiazhuang city, under the background of the coordinated development of Beijing-Tianjin-Hebei, “Shijiazhuang-Hengshui” urban chain should be payed more attention, depending on which Shijiazhuang city and Jinan city chain can be connected together and Hengshui city will be the node in the process of linking Shijiazhuang city and Jinan city together. “Shijiazhuang-Hengshui” urban chain is an integrated urban chain, which is made up of the north chain, central north chain, central south chain and south chain. The central ring inside the central region of the quadrilateral region takes Shijiazhuang, Shenze county, Hengshui city, and Ningjin county as the four vertices, forming the middle connection shaped by the “center ring + triangle+ one chain +one belt”, integrating the area of south Jinzhou city, west Xinji city, north Ningjin city, east Ningjin county, east Zhao county and east Gaocheng district. The two triangles of Shi-Shen-Ning triangle and Heng-Shen-Ning triangle can be formed taking “Shenze county-Ningjin county” as the public lateral chain, in the center of the two triangles “K” structure and “X” core structure should be formed respectively, achieving the coordinated development between the center of the triangle and the three lateral chian.