Guizhou Province is one of the main producing areas of Chinese herbal medicines in China. Among them, the eucommia produced in Zunyi City, because the quality is significantly higher than that of Eucommia in other places, it is named after the place of origin, and the cultivation of Zunyi Eucommia has a long history. In the history, Zunyi Eucommia was used as a distribution center in Sichuan and Chongqing. Eucommia, later named Zhengyi Eucommia.