Zhangzhen, the east gate of Beijing, is located in the northeast of Shunyi District, 60 kilometers away from Beijing, 30 kilometers from the Capital Airport, and 25 kilometers from Shunyi city. It is at the intersection of Pinggu, Tianjin and Hebei. It is close to Pinggu District in the east, Yang Town in the west, Longwan Tun Town in the north, and Dasungezhuang Town in the south. Shunping Expressway runs through the whole area, Daqin Railway runs through the area, Zhangjiao Highway runs through the whole area from north to south, Zhaoxie Highway runs through the southwestern part of the area, and Longfengshan Road connects Shunping Road and Weifan Road, which makes the transportation very convenient. The town is about 10.4 kilometers long in the north and south, about 6.1 kilometers wide in the east and west, with a total area of 54 square kilometers, 29 natural villages under the jurisdiction of the town, with a total population of 25,000 people. The town has a rich cultural heritage and a long history, with places of interest such as Lvbu Tun where Lu Bu hoarded his troops, and the Palace where the Qing Dynasty royal family stayed at the East Tomb to worship bi bi.