In the first year of Wude in Tang Dynasty (AD 6 18), Sizhou was established; In the fourth year of Wude, Wuzhou was established to govern Wuchuan (now the ancient city along the Yangtze River and Jingzhou); In the fourth year of Zhenguan (AD 630), Wuzhou was changed to Sizhou. In the first year of the Northern Song Dynasty (A.D.118), Sizhou moved to Wuchuan, where it ruled the river for 500 years. Among them, from the fourth year of Tang Wude (AD 62 1 year) to the first year of the Northern Song Dynasty (AD118 year) in 497, Sizhou (Wuzhou) ruled the ancient city of Hedong, the county town along the river, and was in Yuanhe County Records, Old Tang Book, and so on. From the first year of Tang Wude to the fourth year of Wude, it is still impossible to accurately locate the ruling place. Only according to historical records such as Guizhou Tongzhi, Yuanhe County Annals, Sinan Prefecture Annals, Cengong County Annals and Yanhe County Annals. It is speculated that it was ruled between Heyeping and Yinjiang River estuary at that time, and the most likely place was Heyeping ancient city and city site. Sizhou in the prosperous Tang Dynasty covered a total area of more than 20,000 square kilometers, covering areas along the Yangtze River, Wuchuan, Youyang, Xiushan, Yinjiang, Dejiang and Sinan. No matter from the area, traffic location, strategic position or the level of economic and cultural development, Sizhou is well-deserved as the first county in central Guizhou. Luantang Academy is one of the earliest academies in Guizhou history, which was founded in Sizhou during the Tang and Song Dynasties. Sizhou Tea, the earliest famous tea in Guizhou history, also became famous in Sizhou in the Tang Dynasty. It is recorded in historical materials such as Tea Classic and Guizhou Tongzhi.
During the Tang and Song Dynasties, Sizhou evolved into Sizhou and Sinan. In the 11th year of Yongle in Ming Dynasty (A.D. 14 13), the two propaganda departments of Sizhou and Sinan established eight states of Sinan, Sizhou, Wu Luo, Shiqian, Tongren, Xinhua, Liping and Zhenyuan, and established Guizhou Province on the basis of the eight states of Sizhou and Sinan. In other words, Sizhou in the Tang Dynasty was the origin of Guizhou, one of the thirteen provinces in the Ming Dynasty, and there was a saying in history that "Sizhou came first, then Guizhou". Some people say that ancient Sizhou is a cultural old man, who picked Pengshui and Fuling at one end, Sinan and Zhenyuan at the other, took the middle road of ancient Guizhou and picked today's Guizhou Province. Guizhou, referred to as "Qian" for short, is to commemorate Gu Sizhou, an old man of Wujiang culture.