The utility model relates to a car shock absorber, in particular to a wedge-shaped shock absorber for underslung equipment. The wedge-shaped shock absorber for the underslung equipment comprises a base, a pressing head and a rubber layer, wherein the rubber layer is arranged between the base and the pressing head, the rubber layer is integrally bonded with the lower surface of the pressing head and the upper surface of the base through adhesive layer heating reaction, the pressing head is of a wedge-shaped structure, a round through hole connected with an equipment drop bracket is arranged in the middle of the pressing head and is used for connecting the equipment drop bracket, and a wedge-shaped groove fit with the wedge-shaped structure of the pressing head is formed in the upper part of the base. The wedge-shaped shock absorber further comprises a baffle, wherein the baffle is arranged in the rubber layer and is integrally bonded with the rubber layer through an adhesive layer, and the rigidity of the rubber layer is adjusted by arranging baffles with different thicknesses to adapt to shock absorption of cars which have different structural forms and different rigidity requirements.