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.

In the big family of Chinese national musical instruments, because of the unique pronunciation principle and production method of the Wa small Dudi, it has multiple tonal timbre characteristics.

As we all know, the Wa Xiaodudi is a musical instrument made of bamboo pipes and combined with the principle of chiming. Due to the simplicity of the bamboo material and the production principle, the Wa Xiaodudi can be named according to the twelve equal temperaments of the musical sound system. structure, making more than a dozen bamboo flutes of different tones and sizes. Bamboo flutes of various tones have different timbre characteristics.