The ceramic body slurry's viscosity are determined to characterize the dispersion property of ceramic body slurry with two self-made polycarboxylate superplasticizer of different molecular structures. The experiment of static adsorption studied kinetic study about adsorption of two self-made polycarboxylate superplasticizer using ceramic blank. The test data were further analyzed with pseudo-second order kinetics. The results show that the dispersion property of polycarboxylate superplasticizer of linear MA/AA/AMPS is much better than that of comb AMPS-modified polyacrylic acid superplasticizer in the ceramic body slurry. The saturation amount of polycarboxylate superplasticizer of linear MA/AA/AMPS adsorbed onto ceramic blank is more than 2 times that of comb AMPS-modified polyacrylic acid superplasticizer. The pseudo-second order kinetic equation was found to best-fit the test data as judged by the correlation coefficients.