NOVELTY - Preparing fermented chicken manure-based fertilizer, by crushing chicken manure, deodorizing crushed product, drying deodorized product, crushing hulls and corn straw into powders, mixing dried chicken manure, crushed hull and corn straw powders, phosphorus pentoxide, potassium chloride and nitrogenous fertilizer, stacking mixture, fermenting mixture, turning mixture, adding fermenting powder to first fermented product, stacking mixture, fermenting mixture, turning mixture, drying second fermented product, crushing dried product, and sieving crushed product.    USE - The method is useful for preparing fermented chicken manure-based fertilizer (claimed).    ADVANTAGE - The method enables preparation of fertilizer that contains comprehensive nutrients and large amount of beneficial microorganisms, provides long-lasting fertilization effect, improves soil structure, has low cost, and is environmentally-friendly.    DETAILED DESCRIPTION - Method for preparing fermented chicken manure-based fertilizer, involves (a) taking 50-56 pts. wt. chicken manure, 10-20 pts. wt. hulls, 13-19 pts. wt. corn straw, 3.1-4 pts. wt. phosphorus pentoxide, 3.2-4.5 pts. wt. potassium chloride, and 11-13 pts. wt. nitrogenous fertilizer, (b) crushing chicken manure, deodorizing crushed product, drying deodorized product at 100-120 degrees C for 4-5 hours, and crushing hulls and corn straw into powders, (c) mixing dried chicken manure, powders obtained in the step (b), phosphorus pentoxide, potassium chloride and nitrogenous fertilizer, stirring mixture uniformly for 2-3 hours, stacking mixture, fermenting the mixture for 25-35 days, maintaining fermentation temperature at 35-65 degrees C, turning fermenting mixture once every 3-5 days, and maintaining the fermentation temperature at 25-35 degrees C after last turning process, (d) adding 0.2-0.3 %mass fermenting powder to fermented product obtained in the step (c), stirring mixture uniformly for 1-2 hours, stacking mixture, fermenting the mixture for 6-7 days, maintaining fermentation temperature at 25-35 degrees C, and turning fermenting mixture once every day, (e) drying fermented product obtained in the step (d) until water content reaches less than or equal to 20%, and (f) crushing dried product, and sieving crushed product to obtain powder having particle diameter of less than or equal to 0.5 mm.