Kang County or Kangxian (simplified Chinese: 康县; traditional Chinese: 康縣; pinyin: Kāng Xiàn) is a county in the southeast of Gansu province, China.

The county is majority Han, with Hui, Manchu, Zhuang, Tibetan, Mongolian, Yao, and Uygur minority groups.

[3] The economy of Kangxian is mainly based around agriculture.

Crops of major importance are wheat, corn, potatoes, soybeans, and white beans.

The county is also a major producer of edible mushrooms such as black wood ear,[6] it also produces a domestically popular Longshen green tea,[7] walnuts, mulberry and silkworm cocoons.