Abstract. In this paper, high oil-absorbing resin is prepared, using microcrystalline cellulose as base material, and acrylate as grafting monomer. Effect of mass ratio of microcrystalline cellulose/monomer, the amount of cross-linking agent, initiator dosage, reaction temperature, and reaction time on oil-absorbing properties of the products is investigated. The optimized conditions are as followed: reaction time 6 hours, reaction temperature 70 °C, mass ratio of microcrystalline cellulose to monomer 1:1.5. The oil absorbing ratio of the product prepared under these conditions is up to 12.9 g/g for toluene, and 14.6 g/g for kerosene oil.