Acoustic vibrating diaphragm

The utility model relates to an acoustic diaphragm, which comprises a first composite part, a bonding part and a second composite part which are stacked, the bonding part is arranged between the first composite part and the second composite part, and the bonding part is arranged along the stacking direction from the first composite part to the bonding part. The bonding part comprises a first damping glue layer, a first polyether-ether-ketone film layer and a second damping glue layer which are sequentially arranged in a stacked mode. The first polyether-ether-ketone film layer has excellent high elastic modulus and high temperature resistance and can play a good role in supporting the first damping glue layer and the second damping glue layer on the two sides so as to ensure the structural stability, and meanwhile, the first damping glue layer and the second damping glue layer have high energy storage and high bonding effects, so that the damping effect is good. The stacked arrangement enables sound energy to