Siziwangqi, a flag under the jurisdiction of Ulanqab, Inner Mongolia Autonomous Region, is located in the central part of the Inner Mongolia Autonomous Region and the northwestern part of Ulanqab, situated on the Inner Mongolia Plateau, with a mid-temperate continental monsoon climate, and adjoining six flags and counties, with a total area of 25,513 square kilometers. As of October 2022, Siziwangqi has jurisdiction over 5 towns, 5 soums, 3 townships, and 1 other township-level unit. According to the seventh census data, as of 00:00 on November 1, 2020, the resident population of Siziwangqi was 129,372 people. Yuan Taizu Genghis Khan brother Habtu Hassal fifteenth grandson of the brain Yintai Otegen, because of its four sons under the jurisdiction of a tribe is called the Four Sons Tribal Banner, referred to as the Four Sons Department, the Four Sons Wangqi name comes from this.April 1, 1950, the people's government of the Four Sons Wangqi was formally established under the Ulanchab League; December 1, 2003, the State Council approved the abolition of the Ulanchab League, the establishment of the prefecture-level city of Ulanchab, the Four Sons Wangqi belongs to Ulanchab City. Siziwangqi is under the jurisdiction of the People's Government of Ulanchab City. The main attractions of Siziwangqi include Gegen Tara Grassland, Xilamulun Temple, Aotech Gully, etc. On August 27, 2021, Siziwangqi was selected as the "National Rural Revitalization Priority Supporting Counties List". on January 29, 2023, Siziwangqi was selected as the "Sixth List of Civilized Cities of Inner Mongolia Autonomous Region". On January 29, 2023, Siziwangqi was selected as "the sixth list of civilized cities in Inner Mongolia Autonomous Region". In 2022, Siziwangqi realized a gross domestic product (GDP) of 7.18 billion yuan, an increase of 2.8% year-on-year; investment in fixed assets increased by 66.2% year-on-year; the general public finance budget revenue of 262 million yuan, an increase of 22% year-on-year; the disposable income per capita of urban and rural residents was 34,811 yuan and 15,657 yuan, an increase of 3.7% and 8.1% year-on-year, respectively.