The invention relates to the technical field of novel materials, in particular to a multilayer sound attenuation material. The multilayer sound attenuation material comprises a sound attenuation block body which comprises a sound attenuation bottom plate, a sound attenuation block, a damping block and an inner sound attenuation layer. The inner sound attenuation layer, the damping block and the sound attenuation block are arranged at the front end of the sound attenuation bottom plate sequentially. The sound attenuation block is in a semi-arc shape, the damping block is crescent shaped, and the inner sound attenuation layer is in an inner arc shape. By adoption of a hierarchical sound attenuation structure including the sound attenuation bottom plate, the sound attenuation block, the damping block and the inner sound attenuation layer and adoption of an arc structure connection means, excellent sound attenuation effects are achieved, and the multilayer sound attenuation material has advantages of convenience in use, simplicity in operation, high practicality, low cost and the like.