Diebu County, a county of Gannan Tibetan Autonomous Prefecture in Gansu Province, is located in the high mountains and valleys between the Minshan Mountains and Dieshan Mountains in the west of the Qinling Mountains, and at the junction of Gansu and Sichuan on the eastern edge of the Qinghai-Tibet Plateau; It borders Zhuoni County in the north, Zhouqu County in the east, Hadapu Town in Dangchang County in the northeast, and Ruoergai County and Jiuzhaigou County in Sichuan Province in the southwest; The total area is 5108.3 square kilometers. By October 2021, Diebu County has 11 townships (5 towns and 6 townships), 52 administrative villages and 243 villagers' groups under its jurisdiction; According to the data of the seventh population census, as of 0:00 on November 1, 2020, the permanent resident population of Diebu County was 52192. There are Tibetan, Hui, Mongolian and other minorities.

Diebu County was called "Diezhou" in ancient times, which means "thumb" in Tibetan, and is known as the place where the mountain god "pressed" to open. There are revolutionary sites such as the "Russian Boundary Conference" in the Long March of the Red Army, the former residence of Chairman Mao in Cigna, and the Tiandang Lazikou Battle. In addition, there are Rannao Majiayao cultural sites and Tibetan Buddhist temples. On September 25, 2018, it was awarded the honorary title of "2018 Comprehensive Demonstration County of E-commerce in Rural Areas" by the Ministry of Commerce. On December 29, 2018, the sixth batch of national national unity and progress demonstration zones (units) were named by the National Civil Affairs Commission. On April 28, 2019, the Gansu Provincial Government approved Diebu County to officially withdraw from the poverty-stricken counties.

In 2020, Diebu County's annual GDP reached 1.94 billion yuan, down 4.9% year on year.

On October 9, 2020, it was awarded the title of the fourth batch of national ecological civilization construction demonstration cities and counties by the Ministry of Ecological Environment.