Dashiwo Town, a town under the jurisdiction of Fangshan District, Beijing, is located in east longitude 115°42′33″~115°50′59″, north latitude 39°30′22″~39°38′37″. Situated in the southwest of Fangshan District, bordering on Changgou Town in the east, neighboring on Dongxianpo Village of Zhuozhou City of Hebei Province in the south, connecting on Zhangfang Town in the west and adjoining on Hancunhe Town in the north. The town area is 91.56 square kilometers.
In 1949, Dashiwu area belongs to three districts of Fangshan county. in 1953, it belongs to new five districts of Fangshan county. in 1954, it belongs to five townships of Fangshan county, namely, Shaitan, Shihwu, Nanshangle, Beishangle, and Shimen. in 1956, it belongs to three townships, namely, Nanshangle, Shaitan, and Shihwu. in 1958, it was assigned to Nanshangle management area of Changgou People's Commune of Zhoukoudian district. in 1961, it was assigned to Nanshangle people's commune of Fangshan county. in 1983, the commune was changed to a township. in 1972, the commune was changed to a township. In 1983, the commune was changed to a township.In 1986, it belonged to Fangshan District.In 1995, the township was changed to a town.In 2001, the town site was moved to Shivo Village and renamed Dashiwo Town. As of the end of 2018, Dashiwo Town has a registered population of 39,520. As of October 2019, Dashiwo Township has 24 administrative villages under its jurisdiction, with the township government stationed in Shiwo Village East.
In 2011, the total industrial output value of Dashiwo Town reached 204,374,000 yuan, with a total profit of 31,255,000 yuan. Local financial income of 21.649 million yuan, an increase of 37% over the previous year. Completed tax 71.56 million yuan, an increase of 19.6% over the previous year. From the point of view of each major tax, the completion of sales tax of 26 million yuan, value-added tax of 35 million yuan, corporate income tax of 5 million yuan, respectively, an increase of 1.4%, 0.5%, 0.8% over the previous year.