Sound-absorbing device for sound generating device, preparation method thereof and sound generating device module

The present invention discloses a sound-absorbing device for a sound generating device, a preparation method thereof and a sound generating device module. The sound-absorbing device for the sound generating device comprises: a sound-absorbing cotton body, which is provided with a skeleton structure; sound-absorbing material powder, which adheres to a skeleton surface of the sound-absorbing cotton body, and particles of the sound-absorbing material powder are provided with a nanometer-level micropore structure and a mesoporous structure, the pore diameter of the micropore structure being smaller than the pore diameter of the mesoporous structure; and an elastic shock absorbing layer, provided on the sound-absorbing cotton body, and is configured to be fixedly connected to the sound generating device. A technical effect of the present invention is that the sound-absorbing device can be easily assembled on the sound generating device and has higher reliability.