Shidian County, a county under the jurisdiction of Baoshan City, Yunnan Province, is located in the western border of Yunnan Province, on the east bank of the Nujiang River, in the south of Baoshan City, between 98 ° 54 ′ - 99 ° 21 ′ E and 24 ° 16 ′ - 25 ° 00 ′ N, bordering Changning County across the Kuke River in the east, Lincang City in the south, facing Longling County across the Nujiang River in the west, and Longyang District in the north. The county seat is 60 kilometers away from Baoshan Municipal Government and 654 kilometers away from Kunming, the provincial capital. With a total area of 2009 square kilometers, Shidian County has a low-latitude mountain monsoon climate dominated by the central subtropical zone, with an annual average temperature of 17.6 ℃. The terrain in the territory belongs to the mountain canyon area at the tail of Nu Mountain. The terrain is generally high in the north and low in the south. The river belongs to the Nujiang River system. By 2022, Shidian County has jurisdiction over 5 towns and 8 townships, and the county government is located in Dianyang Town. According to the data of the seventh population census, as of 0:00 on November 1, 2020, the permanent population of Shidian County was 293022.

Shidian County was founded in the Western Han Dynasty. There are tourist attractions such as the Anti-Japanese Jiangfang Relics in western Yunnan and Huitong Bridge. On February 2, 2019, it was rated by the State Administration of Traditional Chinese Medicine as an advanced unit in the work of traditional Chinese medicine at the national grass-roots level at the county level. On May 17, 2020, it officially withdrew from the poverty county sequence. On July 29, 2020, it was included in the naming list of national health towns (counties) in the 2017-2019 cycle.

In 2021, the gross domestic product (GDP) of Shidian County will reach RMB1019800000, with a year-on-year increase of 6.5% at comparable prices (the same below).