Bayan Ulan Sumu, belonging to Zalait Banner of Xing'an League of Inner Mongolia Autonomous Region, is located in the northwestern part of Zalait Banner, connecting with Albengrad Town and Xinlin Town in the east, bordering with Badalhu Town in the south, crossing the river with the state-owned stock farm and Aradal Tumu in the west, and adjoining with Haduohe Town and Hao Rao Shan Township of Hulunbeier City in the north. Bayan Ulan Sumu area of 2006.16 square kilometers, as of the end of 2018, the household population has 18,454 people.
On December 2, 1950, Bayan Ulan Nutuk was established; in April 1958, Bayan Ulan Township was established; in October 1958, Bayan Ulan Commune was changed; in 1984, Bayan Ulan Sumu was changed. As of June 2020, Bayan Ulan Sumu is under the jurisdiction of 1 neighborhood committee, 11 gacha, and 2 forest living areas.
In 2017, the number of enterprises in Bayan Ulan Sumu totaled 17, and the number of people employed in enterprises was 340; in 2018, there were 35 general stores or supermarkets with a business area of 50 square meters or more in Bayan Ulan Sumu.