The invention discloses silica gel foam with a good ventilation effect, relates to the technical field of silica gel foam, and solves the problems that when the silica gel foam is used, due to heat dissipation of surrounding elements, an internal foam layer is heated, air in the silica gel foam is not easy to circulate, and the overall effect of the silica gel foam is reduced. The silica gel foamwith the good ventilation effect comprises a breathable cotton pad, buffer rubber gaskets are installed on the upper portion and the lower portion of the breathable cotton pad, buffer damping mechanisms are installed in the buffer rubber gaskets, middle foam layers are installed on the outer sides of the buffer rubber gaskets, heat insulation layers are installed on the outer sides of the middle foam layers, and outer foam layers are installed on the outer sides of a heat insulation layers. By installing a flame-retardant layer, the buffer damping mechanisms and a ventilation mechanism, air circulation in the silica gel foam can be accelerated, heat dissipation is facilitated, it is guaranteed that the silica gel foam can be normally used, the good damping effect is achieved, and use safety is guaranteed.