Huishui is a county of south-central Guizhou province, China. It is under the administration of the Qiannan Buyei and Miao Autonomous Prefecture. 61% of its 476,900 population are minorities, including Bouyei, Miao, Hui, Zhuang, Sui, Bai, and Maonan. In 1372 it was the seat of the historic Chengfan commandery.