The nose flute (pinyin: bí xiāo), also known as although Lao, Tunka, Yuanha, is a fringe gas-sounding instrument of the Li nationality in Hainan Island.

The nose flute is a musical instrument commonly used by young Li people to express their love, and both men and women can play it. In the Li family, the marriage is based on whether the nose flute is good or not, and the nose flute can be exchanged as a token of affection. This is how the Li family has been passed down from generation to generation, and the nose flute has been passed down to this day.

The pipes for the nose, flute and flute are made of dianthus, and their length and thickness are different. Folks often use a thin bamboo pipe without knots. The length of the pipe is 60 cm to 70 cm and the diameter of the pipe is about 1.6 cm. , each with a circular sound hole. The sound hole can be opened on one side of the tube body, or one on the front and one on the front. If a bamboo tube with bamboo joints at both ends is used, a circular through hole needs to be opened in the center of the section; Blow holes in the thin end of the bamboo pipe.