The Yi Sixian (pinyin: yí zú sì xián) is a plucked stringed musical instrument of the Yi people. It is popular in Yuanyang, Honghe, Shiping and Maitreya in Honghe Hani and Yi Autonomous Prefecture of Yunnan Province, Muding in Chuxiong Yi Autonomous Prefecture and Lunan Yi Autonomous County.

The shape is the same as that of the Yi Yueqin. It consists of a resonance box, a headstock, a neck, a peg, a string and a string. The total length of the body is 65 cm to 70 cm.

The famous four-stringed songs of the Yi nationality include: "About Playing Tune", "Turn Over Tune", "Slow Three-step Tune", "Sine", "Satire Tune" and the set of "Three Cavities" and so on.

The decoration of the four strings is more particular, and the panels are mostly painted or carved with dragons, phoenixes, pine, bamboo, plum, other flowers and other animal and plant ornaments or patterns rich in ethnic style. The layout is coordinated and colorful. Some fine four-stringed strings are also tied with a long string of metal clickers or bells.

In the Chinese Musical Instrument Museum of the Music Research Institute of the China Academy of Arts in Beijing, there is an extremely precious Yi four-stringed string. This violin is made of fruit wood and has a total length of 69 cm. The sound box is flat and round, covered with a paulownia wood panel, with a surface diameter of 37.3 cm and a thickness of 3 cm. There are two pairs of hollow octagonal flower-shaped sound holes on the panel. Between the string groove and the end of the qin, there is also a chain belt, which is strung with twenty silver dollars, three silver slots and a number of silver bells, which is full of rich Yi style. It has been included in the large-scale album "Illustrated Guide of Chinese Musical Instruments".