The flute is made of a bamboo tube, which is longer than the flute. There are bamboo joints at the upper end, and the lower end and the inside of the tube are hollow. In the middle of the flute, there are five sound holes on the front and one sound hole on the back. The two round holes on the back of the lower end of the tube are sound holes, which can be used for tuning.
The two round holes below the sound hole are sound holes, which beautify the sound and increase the volume, and can also be used to tie the flute ears for decoration.

There are no membrane holes for the flute, and the number of sound holes for the professional playing flute is increased to eight holes, and has a copper socket, which can adjust the pitch and low, which is convenient for the ensemble of the band. According to the material and production process and the professional degree of timbre, the flute is divided into: popular flute, professional flute and fine flute. The common flute is made of purple bamboo, regardless of the number of sections, and the outer lacquer is resin lacquer.
The material requirements are low, and it is suitable for general performance and practice. The professional flute is made of high-grade purple bamboo, which has excellent production technology and is suitable for music performances. The selection of high-quality Xiaoxiao is very particular about the appearance of the bamboo, the degree of aging, the pronunciation, vibration and the number of sections of the bamboo. Among them, the nine-section Xiao is a treasure among the Xiao, all of which are played and collected.