Bamboo tube (pinyin: zhú tǒng) is a musical instrument used by the Hani people. It is a musical instrument evolved from living instruments. It is popular in Simao area of Yunnan Province, Xishuangbanna Dai-Aga Autonomous Prefecture and Honghe Hani-Yi Autonomous Prefecture. In ancient times, it was called "熷", which refers to the cooking method of using a bamboo tube as a utensil, and then "roasting", "burning", "steaming" and "stewing" and other methods to make the food cooked. Bamboo tubes are also made into various handicrafts, pen holders, desk calendars, etc., which are widely popular in the market.