A polycarboxylate superplasticizer for ceramics of linear MA/AA/AMPS was prepared using aqueous solution polymerization with the major monomers including maleic anhydride (MA), acrylic acid (AA), 2-acrylamide-2-methyl propane sulfonic acid(AMPS). The effects of mole fraction of monomers, dosage of initiator and polymerization temperature on the flow time of ceramic body slurry with the polycarboxylate superplasticizer for ceramics of linear MA/AA/AMPS at a dosage rate of 0.35% (based on the absolute dry slurry) were investigated by orthogonal experiments. The structure of the functional group and crystal structure of the polycarboxylate superplasticizer for ceramics of linear MA/AA/AMPS were respectively characterized by means of FT-IR and XRD. The POM and SEM photographs were respectively employed to observe the dispersion of the ceramic body slurry and the cross-section of the shape of the ceramic body samples. The best polymerization conditions of the polycarboxylate superplasticizer for ceramics of linear MA/AA/AMPS are when the polymerization temperature is 90 ℃, the initiator ammonium persulfate accounts for 8% of the total mass of the polymerized monomers, n(MA)∶n(AA)∶n(AMPS) equals 1.0∶3.5∶1.5, and the reaction time is 4 h. The ceramic body slurry's viscosity decreases from 689.5 mPa穝 to 56.8 mPa穝 when the concentration of polycarboxylate superplasticizer for ceramics of linear MA/AA/AMPS is 0.35% (based on the absolute dry slurry).