A composite speaker module includes a vibration damper sheet, a first sound guide assembly, a first speaker driver, a second sound guide assembly, and a second speaker driver. The vibration damper sheet includes a first surface and a second surface opposite to the first surface. The first sound guide assembly includes a first sound guide and a first bracket. The first sound guide disposed on the first surface. The first bracket is connected to the first sound guide and extends away from the vibration damper sheet. The first speaker driver is disposed on the first bracket. The second sound guide assembly includes a second sound guide and a second bracket. The second sound guide disposed on the second surface. The second bracket is connected to the second sound guide and extends along a direction away from the vibration damper sheet. The second speaker driver is disposed on the second bracket.