The small flute is a vertical wind instrument of the Wa ethnic group. The Wa language is called "Wagelo", "Weili" or "Live". Widely popular in Yunnan Ximeng, Cangyuan, Menglian, Lancang and other Wa inhabited areas.

The small solo flute is an ancient vertical wind instrument of the Wa ethnic group. It is made of bamboo and has a round and soft tone. As early as the Eastern Han Dynasty, the predecessor of the Xiao Du Di has been handed down to the people. In the Sui Dynasty and the early Tang Dynasty, the small Dudi became the main musical instrument of Gong Yanzhong. During the prosperous Tang Dynasty, the small flute was always an important instrument in the music system, Yuefu and court music and dance at that time. After the Song Dynasty, Xiao, Flute and other musical instruments gradually replaced the position of the small Dudi, so that it is difficult to see this ancient musical instrument in the vast area of China. It is currently only popular in southern Fujian and Taiwan, and is an inseparable musical instrument for playing southern Fujian.