Weichang Manchu and Mongolian Autonomous County, subordinate to Chengde City, Hebei Province, is located in the north of Chengde City, Hebei Province, with geographic coordinates of 116 ° 32 ′ - 118 ° 14 ′ E and 41 ° 35 ′ - 42 ° 40 ′ N. It borders Harqin Banner, Keshiketeng Banner and Duolun County of Xilingol League in Chifeng City, Inner Mongolia respectively in the east, west and north, and Fengning Manchu Autonomous County and Longhua County in the southwest and south. The county is 138 kilometers long from east to west, 118 kilometers wide from south to north, and covers a total area of 9037.37 square kilometers. The county has jurisdiction over 12 towns, 25 townships and 312 administrative villages. The total population is 423700 (permanent population of the seventh population census at the end of 2020). It is a place where ethnic minorities mainly live, including Manchu, Mongolian, Hui, Han and other 30 nationalities. In 2019, the gross regional product (GDP) will reach 15.466 billion yuan. It has been successively identified as the home of potatoes in China, a national pollution-free vegetable production base, a national commodity cattle base county, a tourist star county in China, the first batch of national agricultural sustainable development pilot demonstration areas, and the first batch of national green energy demonstration counties.

In April 2020, the paddock Manchu and Mongolian Autonomous County was selected as the "best county (city, district) for sports work in 2019" by Hebei Provincial Sports Bureau.