NOVELTY - Method for producing oxygen electrode perovskite-type catalyst, involves accurately weighing nitrate of needed metallic elements based on determined stoichiometric proportion, mixing components and dissolving in solvent, adding citric acid to dissolved mixture and using as complexing agent, carrying out uniform ultrasonic dispersion, carrying out punchy stirring process, dehydrating mixture in water bath, transmitting product to drying oven, drying, transmitting to muffle furnace in air or oxygen, roasting, and cooling to room temperature.    USE - The method is useful for producing oxygen electrode perovskite-type catalyst (claimed) which is used in basic metal-air batteries, fuel cells and electrolyzed water industry.    DETAILED DESCRIPTION - Method for producing oxygen electrode perovskite-type catalyst, involves (a) accurately weighing nitrate of needed metallic elements based on determined stoichiometric proportion according to components of perovskite-type catalyst, mixing components and dissolving in solvent, where the solvent is chosen from organic solvents such as acetone, ethylene glycol, alcohol and propyl alcohol or mixed solution comprising several organic solvents, (b) adding citric acid to dissolved mixture and using as complexing agent, carrying out uniform ultrasonic dispersion at 0.1-10 W/g for 4-24 hours in ultrasonic dispersion instrument, and carrying out punchy stirring process through stirrer at same time, and generating amorphous precursor, where the molar ratio of metal ion and citric acid is 1:1-1:10, and (c) dehydrating mixture in water bath of 30-90 degrees C to obtain wet gel, transmitting product to drying oven at 100-200 degrees C, drying product to obtain honeycomb dried gel, pulverizing and transmitting to muffle furnace in air or oxygen, roasting at 500-800 degrees C for 1-6 hours, and cooling to room temperature. The catalyst is of formula: ABxB1-xO3 (I) (0 greater than or equal to X less than or equal to 1), where A is rare earth element and B is alkaline earth element.