Yongde County, part of Lincang City, Yunnan Province, is located in the northwestern part of Lincang City, with a geographic area of 71.5 km east-west and 75.8 km north-south, covering a total area of 3,220 square kilometers, with mountains accounting for 95% of the area. As of 2019, Yongde County has jurisdiction over 3 towns and 7 townships (including 2 ethnic townships). According to the seventh census, as of 00:00 on November 1, 2020, the resident population of Yongde County was 328,864 people. Yongde County is a traditional passage along the Yunnan-Burma border, controlling the Nanting River in the east and the Nujiang River in the west. Surrounded by Gengma Dai and Wa Autonomous County, Zhenkang County, Longling County, Shidian County, Changning County, Fengqing County, Yun County 7 counties as neighbors. The county has a de party town, so it is named Yongde. Climate in general belongs to the south subtropical and northern tropical intersection of the valley monsoon climate, terrain southeast and west high, tilted to the north, shaped like a mulberry leaf, is China's main production area of nanomedicine chebula, China's macadamia nut township, China's mango township, China's chebula township, the national sugar base counties, the provincial level of tea, animal husbandry, commercial grain, corn seeding bases, Yunnan Province, the natural tourism scenic area. The main attractions include Yongde Daxue Mountain National Nature Reserve and Yongde Tufo. In December 2018, Yongde County was awarded the National Climate Indicator of Climate and Ecology Category.On May 17, 2020, Yongde County formally withdrew from the sequence of poverty-stricken counties.In 2021, the county-wide gross domestic product (GDP) of Yongde County was 917,957,000 yuan, with a year-on-year increase of 8.5%, and an average growth rate of 6.1% in the two years.