The area was first incorporated under
Emperor Xiaozhuang of the
Northern Wei dynasty in 528 CE under the name Anze County (). The county was placed under the administration of upon its formation in 596 CE, during the
Sui dynasty. In 606 CE the Anze County was renamed to Yueyang County (). Yueyang County underwent numerous boundary changes, but retained its name until 1914, when its name was reverted to
Anze County. During the
Republic of China, the county belonged to , but underwent various reorganizations during the
Japanese Invasion of China. In August 1971, Gu County was formed with seven townships from Anze County and three from
Fushan County. In 1973, the county center was built up from
Zhangjiagou Village () and
Wanli Village (). == Geography ==