Zhenghan Great Wall Site is located at the junction of Xingyang in the north-central part of Henan Province and Xinmi at the eastern foot of Songshan Mountain in the middle part. The site of the Great Wall starts from Cao Temple in Wang Zong, Cui Miao in Xingyang, passes through Shantoushan and Xiangshan, reaches Louyuan Village in Jianshan Township, xinmi city, and reaches Cha 'an in Micun Township. It is about 4000 meters long, 3 meters wide and 2-3 meters high, and it is made of gravel.

The city site is an irregular rectangle, and the city wall is rammed with loess. The highest point is16m, the residual height is about10m, and the base width is 40m to 60m. The lower part of the city wall is the spring and autumn rammed layer, and the upper part is the Warring States rammed layer.

The city site is about 5000 meters long from east to west, 4500 meters wide from north to south, and its circumference is 19000 meters. There is a north-south partition wall in the middle, which divides the city into two parts: Dongcheng and Xicheng.

Among them, the north wall of the northwest city is about 2400 meters long, and the east wall is about 4300 meters long. Most of the wall foundations are buried underground, while some wall foundations of the south wall and the west wall have not yet been discovered.

The north wall of Dongcheng is about 1800 meters long, the east wall is about 5 100 meters long and the south wall is about 2900 meters long. There is a small town in the northwest of Miyagi Xicheng, which is 500 meters long from east to west and 320 meters wide from north to south. It is the palace area of Zheng State and Han State.