Jianshui County (Chinese: 建水县; pinyin: Jiànshuǐ Xiàn; Hani: Jeifsyu; Yi: ꏧꎴ / jiep sho) is a city in Honghe prefecture, Yunnan province, China.

It was historic center of the province[citation needed] and remains an important transportation crossroad.

Previously, it has been known as Lin'an (Chinese: 临安) or Huili (Chinese: 惠历); today, the name Lin'an Town is retained by Jianshui's county seat.

To the east lies Kaiyuan, to the west Shiping, to the southeast Gejiu and Yuanyang, to the north Tonghai and Huaning.

Jianshui County has 8 towns and 6 townships.