When playing the liuqin, the player sits upright, places the instrument diagonally in front of the chest, presses the strings with the left hand, and plays with the plectrum with the right hand[2]. Hold the guitar naturally, relaxed and in a coordinated manner, with your left thumb lightly supporting the guitar neck so that you can move it up and down freely to change positions. Picks are mostly made of celluloid, plastic, horn, tortoise shell and other materials, and are made into triangles, quadrilaterals or long strips. The postures of the left and right hands are as follows: Right hand: The right hand is in a natural half-fist state, with the small joint of the thumb slightly convex in the natural state, and the pick is pinched with the front of the first joint of the index finger on the side of the first joint of the index finger. Avoid having the thumb concave. The force point at the moment the pick touches the string is mainly controlled by the combined force of the thumb and index finger pinching the pick. Left hand: The left hand is in a natural half-fist state, with force applied from the large joints of the fingers, and the four fingers exerting force independently. The playing techniques of Liuqin include plucking, picking, double plucking, double picking, sweeping and round playing with the right hand, while the playing techniques of Liuqin include chanting, striking, leading, pushing and pulling strings and overtones with the left hand. Liuqin can play harmonies and chords of various degrees. The natural overtones are sensitive, clear and have good effects. Its tremolo playing method is also unique. It sounds tense and warm when played loudly, and quiet and sweet when played softly.