Dulcimer

The utility model relates to a national music instrument, in particular to a dulcimer which comprises a trapezoidal frame, a beam, a panel, music wires and docks. A beam fixer is positioned in the center onto top and bottom edges of the trapezoidal frame. The beam comprises a main beam and a sub-beam. The main beam is made into a two-segment structure, which is positioned between the beam fixer and the inclined edge of the trapezoidal frame. The bottom of the sub-beam is stuck to the main beam, and in an angle of 45degree against the main beam. The top is stuck to the panel. Compared with traditional dulcimers, the dulcimer changes the framework structure of traditional dulcimer bodies and changes the process of Vibration-Transmission-Resonance, to reach the targets of being light and strong, as well as dulcimer features not disappearing even if in high sound volume.