The samples of Sm2-xCexCuO4 (SCC, x=0.00.25) as cathode materials for intermediate temperature solid oxide fuel cell (IT-SOFC) were prepared by the glycine-nitrate process and characterized by XRD and SEM. The results showed that SCC had no reaction with electrolyte Ce0.9Gd0.1O1.9 (CGO) at 1000°C for 2 h. AC impedance spectroscopy and DC polarization measurements showed that the polarization resistance decreased with the doping of cerium in the lattice. The optimum value of SmL8Ce0.2CuO4 resulted in 0.37 ?.cm² areaspecific resistance (ASR) at 750°C in air. The charge transfer process was the rate-limiting step of the electrode reactions as indicated by the oxygen partial pressure measurement.