NOVELTY - A cathode material preparation method involves completely dissolving strontium nitrate and cobalt nitrate hexahydrate with distilled water, and mixing with yttrium nitrate and stirring to form a mixed nitrate solution. EDTA dissolved with ammonia water and citric acid dissolved with distilled water are poured into the nitrate solution and stirred. The brown gel is dried to obtain fluffy brown powdery solid. The solid is ground and calcined. The powdery solid is taken out to perform X-ray diffraction phase test, where the test result shows that a sample has a cubic perovskite structure.    USE - Method for preparing a cathode material of an yttrium-doped strontium cobalt-based intermediate temperature solid oxide fuel cell.    DETAILED DESCRIPTION - A cathode material preparation method involves weighing strontium nitrate, yttrium oxide, cobalt nitrate hexahydrate, citric acid and EDTA. The yttrium oxide powder is dissolved with a proper amount of concentrated nitric acid to form yttrium nitrate, and stirred at the constant temperature of 90 degrees C. The strontium nitrate and the cobalt nitrate hexahydrate are completely dissolved with distilled water, and mixed with the yttrium nitrate and stirred in a stirrer to form a mixed nitrate solution. EDTA dissolved with ammonia water and the citric acid dissolved with the distilled water are poured into the mixed nitrate solution in sequence, and stirred until the solution reaches brown gel. The brown gel is dried in a drying box to obtain fluffy brown powdery solid. The brown powdery solid is ground and calcined in a box type high temperature furnace at a constant temperature. The powdery solid is taken out to perform X-ray diffraction phase test, where the test result shows that a sample has a cubic perovskite structure.    DESCRIPTION OF DRAWING(S) - The drawing shows a flowchart illustrating a method for preparing a cathode material of an yttrium-doped strontium cobalt-based intermediate temperature solid oxide fuel cell. '(Drawing includes non-English language text)'