Ultrathin flat panel loudspeaker

The invention relates to an ultrathin flat panel loudspeaker, belonging to a part of electric-acoustic device and audio electronic product. A vibration system of the ultrathin flat panel loudspeaker comprises a flat panel diaphragm, an edge, a centring disk, a plastic bracket and a voice coil; and a magnetic circuit of the ultrathin flat panel loudspeaker comprises an upper magnet, a magnetic conductive splint and a lower magnet. The ultrathin flat panel loudspeaker provided by the invention has the advantages of novel structure, ultrathin thickness, high acoustic fidelity, wide sound frequency response range and high electric-acoustic conversion efficiency.