Qu County or Quxian (simplified Chinese: 渠县; traditional Chinese: 渠縣; pinyin: Qú Xiàn) is a county in the northeast of Sichuan Province, China.

It is the westernmost county-level division of the prefecture-level city of Dazhou.

Namely, a partially preserved mausoleum complex, featuring gate towers, or que, belonging to the Shen (沈) family, which dates back to the Han dynasty.

[2][3] From 2014 to 2018, the Han dynasty site of Chengba (城坝遗址) near Tuxi in Qu county was excavated.

A number of eave tiles with Chinese characters "dangqu" (宕渠) have been found, leading archaeologists to believe that this was the site of the Han dynasty city of Dangqu.