An　elastic　abrasive　tool　based　on　micropore　silica　gel　was　designed　and　reinforced　with　silicon　carbide　(SiC)　particle.　The　abrasive　internal　structure　presents　porous　chain　network　structure,　and　the　enhanced　particles　uniformly　distributed　in　the　matrix.　The　compression　performance　of　modified　composites　is　nonlinear　increasing.　The　experimental　results　show　that　the　accumulating　energy　of　the　self　microporous　structure　is　easy　to　overcome　the　internal　friction　in　a　certain　deformation　quantity　of　the　materials.　When　the　deformation　quantity　is　large　enough,　the　microporous　structure　and　the　chain　segment　structure　of　the　matrix　silica　gel　affect　weakened,　so　that　the　properties　of　the　composite　decreased.　And　there　is　a　synergistic　relationship　between　the　particles　size　and　the　matrix　silica　gel.　That　is,　when　the　particle　size　is　near　the　silicon　chain　length,　the　effect　of　particle　enhancement　is　obvious.　When　the　particle　size　is　small,　the　effect　of　particles　was　reduced　because　the　particles　are　inlaid　between　the　slots　in　the　silicon　chain.　On　the　other　hand,　when　the　particle　size　is　larger,　the　particles　are　not　work　in　the　composites.