Preparation of LaNi 1-xFe xO 3, which is one of the candidate materials for solid oxide fuel cell cathodes with high electrical conductivity and resistance against Cr poisoning, was studied with liquid phase mixing method and solid state reaction method. Single phase LaNi 1-xFe xO 3 was successfully prepared irrespective of composition by low temperature sintering at 750°C with liquid phase mixing method, whereas large amounts of raw materials remained in the solid state reaction method by sintering at the same temperature. It can be ascribed to more homogenous cation distribution in raw powder materials prior to sintering with liquid phase mixing method. It has also been revealed that LaNi 1-xFe xO 3with x lower than 0.3 is thermodynamically unstable in air above 1000°C. LaNi 0.6Fe 0.4O 3 showed superior property as cathode material with high electrical conductivity, thermodynamic stability and appropriate sintering property.