In recent years, LaNi0.6Fe0.4O3-δcathode materials have pay a attention to chromium poisoning performance under metal interconnects, but it has relatively low electrochemical performance. This paper improves the electrochemical performance of LNF cathode by Ca doping, La1-xCaxNi0.6Fe0.4O3-δ(x=0、0.05、0.10、0.15、0.20) cathode material was prepared by a glycine combustion method. The phase composition of the material was characterized by X-Ray diffraction. The microstructure of the cathode material was observed by SEM. The chemical forms of elements on the surface of cathode materials was analyzed by XPS.The electrochemical activity of the cathode material was analyzed by an AC impedance spectroscopy. The results show that the activation energy of oxygen reduction reaction decreases with the increase of Ca2+ doping content in La1-xCaxNi0.6Fe0.4O3-δcathode material, which is consistent with the DRT (Distribution of relaxation times) analysis. The La0.8Ca0.2Ni0.6Fe0.4O3-δcathode material has the lowest polarization resistance (0.88 Ωcm2) at 750℃, and exhibits more excellent oxygen catalytic activity than the undoped LNF material, making the LCNF cathode have a broader application prospect in IT-SOFC.