Bixi Township (simplified Chinese: 碧溪乡; traditional Chinese: 碧溪鄉; pinyin: Bìxī Zhèn) is a township that is located in Nanjian Yi Autonomous County, Yunnan, China. As of the 2020 census it had a population of 18,429 and an area of 124.88-square-kilometre (48.22 sq mi).