ABSTRACT ：Silicone resin has no water-absorbing function because it is a strong hydrophobic polymer. However, additionof super absorbent polymer gives much better absorbency than that of conventional silicone resin. In this study, we developednovel silicone materials with water-absorbing function by choosing three types of amorphous acrylic super absorbent polymerswith different particle sizes, determining the mixing ratio of the three polymers and applying the mixtures into two-componenttype silicone material for medical purpose. The change in the mechanical properties such as tensile strength, tear strength, compressive strength and hardness was investigated by varying the particle size and content ratio of the added super absorbentpolymers while preparing the silicone resins. The absorbency of the silicone resins was measured over time. Additionally, the particle shape of the super absorbent polymers as well as the distribution within the silicone resin was observed using an optical microscope.