Diatomite　and　wood　activated　carbon　were　used　to　produce　activated　carbon　ceramic　composite　materials.　Effect　of　carbon　content　of　the　composites　on　properties　such　as　iodine　absorption,　bulk　density,　porosity　and　compression　strength　of　the　materials　were　tested　and　thus　the　optimal　process　parameters　were　determined.　The　influence　of　activated　carbon　content　and　ambient　temperatures　on　benzene　removal　capacity　was　also　characterized.　The　results　show　that　the　optimal　ratio　(by　mass)　of　diatomite　to　activated　carbon　is　7　to　3,　and　the　optimal　sintering　temperature　is　800°C.　The　materials　with　carbon　content　of　25.62%　made　under　these　conditions　show　the　following　properties:　porosity　of　52.48%,　buck　density　of　1.067　g/cm3,　compression　strength　of　10.466　MPa,　iodine　absorption　of　291.24　mg/g,　benzene　absorption　capacity　of　9.56　and　specific　surface　area　of　290.72　m2/g.　The　benzene　absorption　capacity　increased　significantly　with　the　increasing　of　activated　carbon　content　but　is　merely　affected　by　the　ambient　temperature.