NOVELTY - Organic fertilizer composition preparation involves crushing corn stalk, wheat stalk, soybean stalk and sesame stalk (4:2:1:1 mass ratio) into granules (0.5-0.8 cm). Water (1.5 %) and ammonia water (50 %) are added and mixed to the obtained product with stirring condition. The obtained product is sealed and kept for 3-8 days to obtain mixture A. Cow manure, sheep manure and pig manure (10:8:5 mass ratio) are taken. Cow manure is sterilized alternatively by using ultraviolet radiation for 50-70 minutes and then by ozone sterilizing process initially for 10 minutes and then for 30-50 minutes.    USE - Method for preparing organic fertilizer composition (claimed).    ADVANTAGE - The method enables to produce product, which ensures improved conditioning of soil, soil microorganism activity rate and soil air permeability, and overcomes soil hardening.    DETAILED DESCRIPTION - Organic fertilizer composition preparation involves crushing corn stalk, wheat stalk, soybean stalk and sesame stalk (4:2:1:1 mass ratio) in granules (0.5-0.8 cm). Water (1.5 %) and ammonia water (50 %) are added to the obtained product, and mixing uniformly by stirring. The obtained product is sealed and kept for 3-8 days to obtain a mixture A. Cow manure, sheep manure and pig manure (10:8:5 mass ratio) are taken. Cow manure is sterilized alternatively by using ultraviolet radiation for 50-70 minutes and then by ozone sterilizing process initially for 10 minutes and then for 30-50 minutes. Sheep manure is sterilized thrice for 50-70 minutes by using ultraviolet radiation, and then by using ozone sterilizing process initially for 20 minutes and then for 30-50 minutes. Sheep manure is sterilized again for 60-80 minutes by using ultraviolet radiation, and then by using ozone sterilizing process initially for 20 minutes and then for 30-50 minutes. The obtained sterilized manures are mixed uniformly to obtain mixture B. Cotton seed and ryegrass are crushed to 20-30 meshed size. The obtained product is ground uniformly with water in 1:2:1 ratio. Aspergillus niger is added to the obtained product and processed for aerobic fermentation for 3-5 days at 28 degrees C to obtain mixture C. Mixtures A, B, and C are filtered and mixed with sodium in mass ratio of 6:10:2:0.2 uniformly. Effective microorganism bacteria (2 %) are added to the obtained mixture and processed for aerobic fermentation for 5-8 days at 30 degrees C to obtain mixture D. Oyster powder (0.2-0.5 %), plant ash and charcoal powder (0.1 %) are added to mixture D and mixed uniformly. The obtained product is sterilized by ozone sterilizing process, and then dried for 24-36 hours at 50-55 degrees C. The obtained product is sterilized by ultraviolet sterilizing process and packed to obtain finished product.