A county was established in the early Han Dynasty, belonging to Wei County.
The county seat at that time was in Guzhen, 50 miles southwest of the city.
Wang Mang changed Wu 'an to "Huan 'an" in the new dynasty and changed it to Wu 'an in the early years of the Eastern Han Dynasty.
The county seat of the Sui Dynasty moved here.
Since the first year of Wude in Tang Dynasty (6 18), Wu 'an has been changed to Zizhou, Cizhou, Mingzhou and Cizhou successively.
In Yuan Dynasty (1265), Wu 'an was merged into Handan County.
In the first year of Hongwu in Ming Dynasty (1368), Wu 'an still belonged to Cizhou.
In the 26th year of the Republic of China (1937), it was changed to Wu Nan county (194 1 year), Wuci county (established after merging with some counties in Cixian county) and Wudong county (1944).
1945, the county was liberated, the original Wuci and Wudong counties were abolished, and Wu 'an County was established.
1946, restore the original buildings in Wu 'an County.
/kloc-in 0/958, Wu' an county was abolished, the west was merged into Shexian county, and the east was placed under Handan city, which was called Wu' an mining area.
196 1, restore the original county of Wu 'an County.
1988 10 6 was renamed as Wu' an city, which is a provincial-level county-level city and managed by Handan city.