Zhenyuan Yi, Hani and Lahu Autonomous County (Zhenyuan County) is one of the counties under the jurisdiction of Pu'er City, Yunnan Province. The county is located in the southwest of Yunnan Province, between Ailao Mountain and Wuliang Mountain. The whole county has a land area of 4223 square kilometers, and the mountainous area accounts for 97.7%. The county seat in Di'enle Town is 434 kilometers away from Kunming, the provincial capital, and 180 kilometers away from Simao, the residence of Pu'er City. By 2021, Zhenyuan County has jurisdiction over 1 township. According to the data of the seventh population census, as of 0:00 on November 1, 2020, the permanent population of Zhenyuan Yi, Hani and Lahu Autonomous County was 179503.

In 2017, it was awarded the title of "National Garden County". On April 30, 2019, the People's Government of Yunnan Province decided to withdraw Zhenyuan Yi, Hani and Lahu Autonomous County from the poverty line.

In 2020, Zhenyuan Yi, Hani and Lahu Autonomous County achieved a gross domestic product (GDP) of 8.861 billion yuan, an increase of 5.2% year on year, ranking the third in the city. The investment in fixed assets exceeded 10 billion yuan, with a year-on-year increase of 64.8%, ranking the second in the city. It achieved a year-on-year increase of 1.4% in the added value of industries above designated size, a total retail sales of social consumer goods of 1.988 billion yuan, and a general public budget revenue of 402 million yuan, The general public budget expenditure of local finance was 2.104 billion yuan, the per capita disposable income of urban permanent residents was 32233 yuan, up 4.5% year on year, ranking third in the city, and the per capita disposable income of rural permanent residents was 13141 yuan, up 8% year on year.