Sanyanxiao (pinyin: sān yǎn xiāo), a characteristic national musical instrument, is unique to the long-horned Miao, an important branch of the Miao nationality. It is mostly found in Zhijin County and Liuzhi County, Guizhou Province. famous. They are the Miao people living in Huadong, Zhongzhai, Potoushang, Lizhongdi in Agong Town, Zhijin County, and Pingzhai, Anjiao, Dashuichong, etc. )"] In social life, especially young men and women play a unique self-made musical instrument in the occasion of love and love. It is named because there are only three sound holes, and the Miao language calls it "gdnrdn".

"Three-eyed flute" is made of thin bamboo, drilled with three holes, and added with reeds to complete it. Because it has only "three eyes", it is called "three-eyed flute".

This three-eyed flute is shaped like a Han musical instrument Dongxiao (also known as a Su Di or a recorder) and a Western musical instrument black pipe, but the unique difference is that there are only three sound holes, and the thickness of the pipe is different. It is made by taking a section of bamboo tube that is not limited in length or thickness, as long as it has seven knots; the root end of the bamboo tube is used as the upper end, and the 1.5 cm part of the back is cut down to form an oblique mouthpiece, and a pronunciation hole is cut at 3 cm at the front; Above the pronunciation hole, the left and right sides are cut into the air blowing fork, and a thin bamboo reed is embedded in the fork. The reed covers 1/4 of the pronunciation hole, and the two sides are sealed with rice straw or wheat straw. Then, cut two sound holes on the front according to a certain proportion, and cut a sound hole on the back between the two sound holes.