The area administered by the office includes the area south of the Keelung River in downtown Taipei, including Xindian District, Shenkeng District, Shiding District and Pinglin District in New Taipei City. Annual rainfall is about 1800-3000 mm, and the annual average temperature is about 20-30 °C, which is a subtropical island climate.
In the 1950s, due to the rapid social and economic growth, much farmland became industrial, commercial or residential land. With the decreasing arable land and the formation of the Greater Taipei Metropolitan Area, the office was transformed into a metropolitan management office.
The office’s main irrigation water source is Xindian River from the Danshui River System. The main irrigation canals include Dapinglin Canal, Guangxing Canal, Wantan Canal and Tutan Canal, which are mainly located in the jurisdiction of Xindian Workstation, with the drainage channels mainly distributed in jurisdiction of Shezi Workstation.
The office adopts a general irrigation method for double cropped fields whereby farmers divert water for irrigation according to the needs of their fields, and repair irrigation facilities during the winter water cutoff period. In 1989, due to the gradual decline in water resources, the office began to promote upland farming. As of 1999, NT$10 million in subsidies had been paid, benefited an area of about 30 hectares.