Dizi is an ancient Han musical instrument, and it is also the most representative and national musical instrument among Han musical instruments. China bamboo flute is one of the woodwind instruments commonly used in China traditional music, which is generally divided into Qu Di in the south, Bangdi in the north and alto flute in the middle. Di Zi is often used in China folk music, China traditional opera, China national orchestra, western symphony orchestra and modern music, and is one of the representative musical instruments in China. In national bands, flute is an important wind instrument and is considered as the representative of national wind music. Most flutes are made of bamboo, but there are also flutes made of stone flutes, Yu Di and mahogany, as well as ancient bone flutes. But the best raw material for making flutes is bamboo, because bamboo flutes have better sound effect and lower production cost.