Tonghai County, belonging to Yuxi City, Yunnan Province, is located in the central south of Yunnan Province, on the lakeside plains of Qilu Lake, bordering with Huaning County in the east, Eshan Yi Autonomous County and Hongta District in the west, Shiping County and Jianshui County in the south of Honghe Prefecture, and Jiangchuan District in the north, with a total area of 721 square kilometers. As of October 2022, Tonghai County has 2 streets, 4 towns and 3 townships under its jurisdiction. As of the end of 2022, the resident population of Tonghai County was 292,300 people. Tonghai County's special geographic and natural conditions have made Tonghai famous as a "famous state of rituals and music", "the best show in South Yunnan", and "the crown of the southern state", with more than 230 people being certified by the Ming and Qing dynasties, 44 people being appointed to the Hanlin Academy, and more than 1,000 people being elected to the Hanlin Academy. In the Ming and Qing Dynasties, there were more than 230 successful candidates, 44 successful candidates, and 4 people were elected to the Hanlin Academy. It has been awarded the honorary titles of Provincial Famous Historical and Cultural City, National Advanced County of Cultural Relics, National Advanced County of Culture, Chinese Couplet Culture County, Hometown of Chinese Poetry, and National Famous Historical and Cultural City. In 2022, Tonghai County realizes a gross domestic product (GDP) of 20.8214 billion yuan, divided into industries, the added value of the primary industry is 3.08072 billion yuan, the added value of the secondary industry is 5.70069 billion yuan, and the added value of the tertiary industry is 12.03999 billion yuan. The proportion of the three industries is 14.8:27.4:57.8.