Since the Ming and Qing Dynasties, with the rise of artesian wells, Zigong salt industry gradually heyday.
During the middle period of the Qing Dynasty, Zigong salt industry attracted not only investors come here opened banks from Shanxi, Shaanxi, Guangdong, Jiangxi, Guizhou, Hubei and Hunan provinces, but also laborers come here work directly and indirectly from surrounding Guizhou, Yunnan .