Composite sponge insole

The utility model relates to the technical field of sponge insoles, in particular to a composite sponge insole which comprises an insole body and a cotton insole, one end of the cotton insole is connected with a buffering rubber ring, a protection pad used for dispersing acting force is installed between the insole body and the cotton insole, the insole body, the cotton insole and the protection pad are consistent in shape, and the cotton insole comprises an antibacterial layer, a cotton layer and a bonding layer. The antibacterial layer is composed of olive extract or vaccinium bracteatum thunb extract, the surface of the bonding layer abuts against one end of the buffer rubber ring, and the shape and the size of the buffer rubber ring are consistent with those of the cotton cushion; a plurality of connecting rods are installed at one end of the buffer rubber ring, connecting holes matched with the connecting rods are formed in the surfaces of the pad body and the protection pad, the effect of reducing bacte