Disclosed is a loudspeaker module comprising: a housing; a loudspeaker unit accommodated in the housing and dividing an inner chamber of the loudspeaker module into a front chamber and a rear chamber; a leakage hole formed on the housing at a position corresponding to the rear chamber; and a damping member covering the leakage hole, and being fixed on an outer surface of the housing at an area around the leakage hole, wherein the damping member comprises a sound-permeable damping film and a supporting member bonded together by a first adhesive layer, wherein the supporting member has a first inner hole and is provided on an outer area of the damping film in an annular shape, wherein the first adhesive layer has a second inner hole and is provided on an outer area of the supporting member in an annular shape.