yanyuan county belongs to Liangshan yi autonomous prefecture in Sichuan province, which is located on the southeast edge of the Qinghai-Tibet plateau in Sichuan province and on the west bank of the lower reaches of the Yalong river. its geographical coordinates are: 111 42 ′ 19 ″-112 13 ′ 44 ″ east longitude and 27 16 ′ 31 ″-28 16 ′ 31 ″ north latitude. The county is about 133.6 kilometers long from east to west and 129.4 kilometers wide from north to south, with a total area of 8398.6 square kilometers.

As of June 2121, Yanyuan County has jurisdiction over 34 townships (towns), ***247 villages, 5 communities, 1857 villagers' groups and 42 residents' groups, where 21 ethnic groups, including Yi, Mongolian, Tibetan and Hui, live. According to the data of the seventh census, as of 1: 11 on October 1, 2121, the permanent population of Yanyuan County was 341,898. On September 22, 2121, it won the "Harvest Cup" for grain production in Sichuan Province in 2119.