jiangchuanxianIntroduction：Jiangchuan Introduction: Jiangchuan County is east-south and cross-strait in central Yunnan. The maximum distance between east and west is 31.9 kilometers, and the largest vertical separation from north and south is 35.7 kilometers and 850 square kilometers, of which 71.77% are in mountainous and semi-mountainous areas, 15.96% in dam area and 12.37% in lake area. The land is fertile, the water conservancy conditions are superior, and the crops are wide, especially the high quality and high yield of flue-cured tobacco. It is known as the “land of fish and rice” and the “hometown of cloud smoke”. Flue-cured tobacco, piglets, vegetables, flowers, and phosphorus chemicals are the current economic pillar industries. Vegetables, fresh cut flowers, yellow phosphorus, and red phosphorus are the main export earning products. The Lijiashan bronze culture represented by the Niuhu copper case is a treasure in the ancient Shu culture.