Using 2-acrylamido-2-methyl propane sulfonic acid(AMPS) as monomer, attapulgite (APT) and carboxymethylcellulose (CMC) as composite components, novel eco-friendly carboxymethyl cellulose-g-poly(2-acrylamido-2-methyl propane sulfonic acid)/attapulgite superabsorbent composites were synthesized by means of microwave irradiation.The suitable reaction condition of of superabsorbent resin was investigated .The chemical micstructure of superabsorbent resin were determined by FTIR. The results showed that CMC and APT participated in grafting copolymerization reaction，and the water absorbency of superabsorbent resin is 834g/g in the deionized water and 78g/g in normal saline respectively under the suitable conditions. the water absorbency of superabsorbent was decreased quickly with the increase of salt concentration and the valence of metal cation. The water absorbency, salt-tolerant performance and pH stability of superabsorbent resin could be remarkably enhanced by introducing a proper amount of APT.