The old city of Handan, Zhao, is the seat of the capital of Zhao during the Warring States Period, located in the urban area of Handan and its southwest suburbs. The total area is about18.88 million square meters. The whole city is divided into Kuocheng and Miyagi, which are more than 60 meters apart. 12 is also one of the most famous metropolises with a large population and prosperous business in the north of the Yellow River at the end of the Warring States Period. According to the investigation, the profile city rose in the Spring and Autumn Period and expanded in the Warring States Period. It is the main part of the capital of Zhao State. 12 The old city of Handan includes Zhaowangcheng and Dabeicheng. Zhaowangcheng is the site of Zhaodu Miyagi, which is divided into three cities: east, west and north, and it is shaped like a "pin" on the plane. There are rammed earth platforms such as Longtai and Nanbei Jiangjun platforms in the city, and there is a wide rammed earth foundation underground, which shows the basic features of urban architecture in the early feudal society of China. The ruins of workshops, ironmaking and pottery kilns were discovered in Dabei City. 12 From the sixteenth year (386 BC) when Zhao moved from Jinyang to Handan, to the nineteenth year of Qin Dynasty (228 BC) when Zhao was destroyed by Qin, Handan, as the capital of Zhao, experienced eight generations of princes, which lasted 158 years. The Han Dynasty was the capital of Liu Ruyi, the king of Zhao. It gradually declined after the Han Dynasty.