Kaifeng was called Tokyo and Bianjing in ancient times (also known as Daliang and Bianliang), or Bianjing for short, and was known as "the ancient capital of ten dynasties" and "the city of seven dynasties". Kaifeng is the original site of the Riverside Scene at Qingming Festival, and has the reputation of "Tokyo Dream China". Kaifeng, Tokyo in the Northern Song Dynasty was the most prosperous, largest and most populous metropolis in the world at that time. Kaifeng is located in the east of the middle and lower reaches of the Yellow River plain, at the eastern foot of Taihang Mountain, in the central and eastern part of Henan Province, east longitude113 52'15 "-15' 42", and north latitude 3415.

It is 500 kilometers away from the Yellow Sea, adjacent to Zhengzhou, the provincial capital in the west, Xuchang City and Zhoukou City in the south, and the Yellow River and Xinxiang City across the river in the north.

Wei is divided into four states: Si, Yu, Yan, Qing, Xu, Liang, Yong, Ji, You, He, Jing and Yang. Among them, Liangzhou led a black-bone chicken captain to protect the western regions; The land of Youzhou reaches Liaodong; The southern countries are connected with Shu and Wu by the Qinling Mountains and Huaihe River respectively. Shu is located in Yizhou, from Qinling to Nanzhong. Southeast of Wude.