According to historical records and the survey of cultural relics workers, it is proved that the Great Wall was built in Badaling area during the Warring States Period, but there are still remnants of walls and piers, and its trend is basically the same as that of the Great Wall today and tomorrow. According to China's records, there are two Guancheng, the military capital and Juyong country. The Northern Wei Dynasty's Notes on Water Classics said, "Juyongguan is in Juyongguan, hence its name. The south is the valley, and the stones are the ruins. This is not an easy achievement ... Its water is in the south of the mountain and its army is in the world ... "Therefore, some experts believe that Juyongguan is located in Badaling.

The Great Wall was built 1500 years ago in Badaling area of Northern Wei Dynasty. According to the Chronicle of Shi Zu Wei, in 446, the Great Wall was built in the north of Pingcheng (now Datong), the capital of the Northern Wei Dynasty. It started from the Dushan Mountain of Shanggu Army in the east (Badaling area) and reached the bank of the Yellow River in the west. Later, he came to Tianbao in the Northern Qi Dynasty for six years (555 years), and built the Great Wall, starting from Datong in the west and reaching Shandong in the army. The Great Wall extended to the seaside.