Pixian (Pixian) generally refers to the Yudu district
Dadu District, subordinate to Chengdu City of Sichuan Province, is located in the northwest of the downtown area of Chengdu, adjacent to Pengzhou City and Xindu District on the northeast, Jinniu District on the southeast, Qingyang District on the south, Wenjiang District on the southwest and Dujiangyan City on the northwest.

There will be two types of data in the Regional Statistical yearbook: "Subregional" and "subdistrict". The "sub-regional" version of the data is: under the jurisdiction of 7 subdistricts, 3 towns, the seventh national census population of 1.39 million, land area of 395 square kilometers, 2021 GDP of 72.42 billion. The data of the "subdistrict" version is: it has jurisdiction over 9 subdistricts and 3 towns. The population of the seventh National census is 1.672 million, and the land area is 438 square kilometers. In 2021, the GDP is 136.54 billion.

As an important part of the central city of Chengdu, Dadu District is an "electronic information and entrepreneurship industrial base, and an international new urban area" which is focused on the construction of the national central city of Chengdu. There are 19 technical colleges and universities such as Electronic Science and Technology University and 23 national laboratories (research centers) in Dadu. It has the first trillion-level electronic information industry base in the province, the national Sichuan Cuisine Industrial Park named after local cuisines, the first national ultra high-definition video industry base, the first national demonstration base of mass innovation and innovation, and the national experimental zone for urban-rural integration development.

In 2021, the GDP of Baodu District reached 72.42 billion yuan, up 8% year on year.