The son of heaven Beidou was ordered to make an appointment with Kyushu. According to their relative positions, four stars correspond to the east and south, and three stars correspond to the west and north. Therefore, in the book Huntu, it is considered that "Shu Tianxing is the master of Xuzhou, Tian Xuanxing is the master of Yizhou, Tianqi is the master of Jizhou, Tianquan is the master of Jingzhou, Yuxing is the master of Yanzhou, Kaiyang is the master of Yangzhou, and Ursa major is the master of Yuzhou"; This is the division of ancient Kyushu. Another way of saying it is that Beidou corresponds to "Qin Chuliang, Wu Zhaoyan Qi".

In the late Warring States period, the territory expanded, and the first star corresponded to Yongzhou (north of Huashan, Gansu and Shaanxi). ); The second star corresponds to Jizhou (east of Taihang Mountain, Hebei, Henan and other places); The third star corresponds to Yanzhou and Qingzhou (southern and central and eastern Shandong); The fourth star corresponds to Xuzhou and Yangzhou (southeast of Yimeng Mountain and Jiangsu area); Five stars correspond to Jingzhou (east of Dabie Mountain, Jiujiang, Jiangxi, Hubei, Hunan); The sixth star corresponds to Liangzhou (Sichuan, Hanzhong); Seven stars correspond to Yuzhou (northwest Henan, Shaanxi and other places).