The horn is a nearly lost musical instrument, created by the ancestors of the Yao nationality, and has the same effect as the horn in the Yao nationality musical instrument. Made from tender bamboo. When cutting, cut a long bamboo, each bamboo joint is cut with a small bamboo joint, and a bamboo leaf is inserted at the end. The length of the horn varies from four to five knots, and it can be as long as dozens of knots. From top to bottom, from small to large, shaped like a trumpet. If you play music, you need to remove the bamboo leaves and punch holes, similar to the flute. The horn is simple to make, simple in shape, and has a crisp and pleasant sound, which can be played or used for home decoration.

The Yao people live in subtropical areas, and the altitude is generally between 1,000 and 2,000 meters. Due to the different characteristics of production methods, residence and clothing, due to differences in economic life and customs, there are "Pan Yao", "Shan Ziyao", "Dingban Yao", "Flower Basket Yao", "Guoshan Yao", "White Pants Yao", "Red Yao", "Landian Yao", "Bapai Yao", "Pingdi Yao", "Au Yao" and other appellations are different. After the founding of the People's Republic of China, they were collectively referred to as the Yao people. Mainly distributed in Guangxi Zhuang Autonomous Region and Hunan, Yunnan, Guangdong, Guizhou and other provinces.