Abstract: An elastomer loudspeaker box system includes a loudspeaker box, a loudspeaker unit, a baffle and a bottom board. The loudspeaker box is made of elastomer material, and the tube wall of the loudspeaker box is bended to form a box body of corrugated tube shape, whereby the box body of the loudspeaker box is elastic and is retractable freely. The loudspeaker unit is mounted to the baffle. One end of the loudspeaker box is mounted to the baffle, and the other end is closed by the bottom board, whereby the loudspeaker unit, the loudspeaker box and the bottom board cooperatively form a closed box system. So, the loudspeaker unit and the retractable rock movement of box body of the loudspeaker box can produce resonance, and the elastic box body acts as sound radiator to radiate the low frequency, thereby extending the bass response towards low side, increasing the purity of sound, and improving the bass performance.