Composite sponge cushion

The utility model relates to a compound type sponge cushion in the technical field of cushions, which comprises a silicon rubber case, a supporting part and a sponge part, the supporting part and the sponge part are both arranged in the silicon rubber case, the sponge part comprises two pieces of memory sponge, the supporting part comprises two hard plates and a plurality of supporting springs, and the supporting springs are arranged in the silicon rubber case. The plurality of supporting springs are uniformly arranged between the two hard plates, the two hard plates are connected through the plurality of supporting springs, and the two memory sponges are respectively arranged on the surfaces of the surfaces, different from the surfaces provided with the supporting springs, of the two hard plates. The seat cushion is provided with the supporting part, the two hard plates are supported through the supporting spring, and when a person sits on the seat cushion, the supporting part can achieve a good compression