To play dulcimer, it relies on the joint movement of the muscles and joints of various parts of the arm to generate percussion force, which acts on the qin (also known as qin bamboo) to strike the qin and strings, making the strings vibrate and sound, and transmit them through the piano code, causing the panel and the piano cavity. The air vibrates, producing acoustic resonance. Whether this joint movement is correct or not plays a decisive role in the quality of performance.

The playing action is based on the cooperation of the arm, with the wrist and finger joints as the center of activity, using the thumb, food, and middle three finger holding method, relying on the combination of wrist extension, rotation and finger twisting. "wrist-finger method" or "finger-wrist method").

From the arm. In terms of the relationship between the wrist and the finger, the wrist is generally the main one, and the fingers and the arm are supplemented. The whole performance is an arm, wrist, and knuckle-driven, organically coordinated action. As far as the mechanical characteristics are concerned, the bones of various parts are in lever motion under the action of muscle tension.

The resultant force of its dynamic force and the elasticity, weight and motion acceleration of the piano is finally concentrated on the fingers (the point of dynamic action is at the junction of the thumb and the index finger.) It acts on the key head to form a gathering point of force to hit the strings. The qinjian takes the wrist joint as the center of the circle, and moves in a slightly oblique upper and lower semi-circular arc in the three-dimensional space.