Changwu County, subordinate to Xianyang City of Shanxi Province, is located in the west of Guanzhong, northwest of Xianyang City in the middle of the Jing River south. East and Bin County adjacent, south and Gansu Province Lingtai County connected, west and Gansu Province Jingchuan County bordering, north and Gansu Province Ning County, Zhengning County border. Between east longitude 107°38 '49 "-- 107°58' 02", north latitude 34°59 '09 "-- 35°18' 37". The maximum length is 30.06 km in the north and south, and 27.23 km in the east and west, with a total area of 567 square kilometers. It has jurisdiction over 1 street and 7 towns.

Changwu County known as "three Qin barrier", "Qin Long gateway" said. Qin Shi Huang 27 years (220 years ago) county, has more than 2200 years of history, is the "elegant gentleman" Sui Dynasty Shang Shu Niuhong's hometown, Tang Taizong Li Shimin war of the plateau of water. Wang Feng, an outstanding leader of the United Front and national work, passed through Changwu to transmit secret messages.

By the end of 2021, Changwu County has a permanent population of 148,200. In 2021, the GDP of Changwu County reached 11.8323 billion yuan, of which the added value of the primary industry was 2.0171 billion yuan, the secondary industry was 7.468.8 million yuan and the tertiary industry was 2.3464 billion yuan. The ratio of tertiary industrial structure is 17.1:63.1:19.8. Per capita GDP reached 79,785 yuan (permanent population 148,200)