The composite electrode of (LSCF) and Ag was examined as an air electrode for intermediate-temperature solid oxide fuel cells. Two types of LSCF/Ag composite electrodes were prepared. One was made by firing the printed sheet of LSCF-GDC ( doped )-Ag powder mixture on the GDC/ doped zirconia (YSZ) electrolyte, and the other was prepared by firing the LSCF electrode on GDC/YSZ infiltrating a solution in the pores of the electrode. In both cases, the cathode polarization overpotentials were reduced by the addition of Ag into LSFC. The power density of anode support cells with the LSCF electrode was increased from at by infiltrating a solution into the electrode.