Peyziwat County was established in July 1902. In 1981, there was a brief pro-independence rebellion, the
Jiashi uprising (), in the county staged by
Uyghur activists after riots in
Kashgar. The
1997 Jiashi earthquakes, continuing to 2003, were a series of deadly earthquakes in the county. In February 2002, a 6.7 magnitude earthquake killed 267 people in
Maralbexi County and Payzawat County. On 27 August 2008, two ethnic Uyghur police officers were killed. In 2017, Jiashi County Secondary Vocational School (), one of the
Xinjiang internment camps, was increased in size, adding new dormitories and factory warehouses; significant security features were added through the introduction of secure 'military-style management'. On the night of 19 January 2020, a strong earthquake () damaged buildings and seriously injured at least one person in the county. ==Administrative divisions==