Introduction to Ningnan: Ningnan County is located on the east side of the southern part of Sichuan Liangshan Yi Autonomous Prefecture, facing Jinsha River in the east and Qiaojia County in Yunnan Province across the river. (North latitude 102°76′—— between 27°07′ east) The total area is 1667 square kilometers. It administers 6 towns, 19 townships, 124 villages and 819 villager groups with a total population of 192,000. It is a Han nationality. It is a mountainous agricultural county with many ethnic groups living in the main, Yi, Buyi, Hui, Tibetan and Mongolian. Here, there is the reputation of “Southernland scenery Xiaotianfu, Jinsha Riverside Qiaomingzhu”; “Nansi Road” brand high-quality silkworm cocoons who have won the “five firsts” of Sichuan sericulture and high-quality raw silk represented by “Yinhong” brand; The mountain fragrant high-quality tobacco leaves of “Mountain Smoke Growth Saiyunyan”; Baihetan Hydropower Station, the second largest hydropower station in China, will be built in Baihetan on the main stream of Jinsha River in Ningnan.