NOVELTY - An organic fertilizer is produced by breaking animal residues, distillers' grains, plant straw and colza cake; adding the broken materials and poultry manures, urban sludge, turf and organic fertilizer fermenting agent to a fermenting pond, adding water, and fermenting; adding organic fertilizer sterilizing and deodorizing agent to the pond after fermenting, uniformly stirring, and removing bacteria and odor in the organic fertilizer; conveying the organic fertilizer containing water in the pond to a filter; and conveying the dewatered organic fertilizer to a granulating machine.    USE - Method for producing organic fertilizer (claimed), used to increase and update organic materials of the soil, promote reproduction of microorganisms and improve physicochemical property and bioactivity of the soil.    ADVANTAGE - The method has simple process, and low cost; and provides fertilizer having full nutrition and long effect.    DETAILED DESCRIPTION - Producing organic fertilizer comprises:    (A) preparing (pts.wt.) animal residues (10), poultry manures (15), urban no-pollution sludge (10), distillers' grains (15), plant straw (25), turf (5), organic fertilizer fermenting agent (10), colza cake (5), water (10) and organic fertilizer sterilizing and deodorizing agent; and breaking the animal residues, distillers' grains, plant straw and colza cake by a breaker;    (B) adding the broken materials and poultry manures, urban sludge, turf and organic fertilizer fermenting agent to a fermenting pond, adding water to uniformly stir, and fermenting for 10 days in summer and 20-25 days in winter;    (C) adding organic fertilizer sterilizing and deodorizing agent to the pond after fermenting, uniformly stirring, and removing bacteria and stink in the organic fertilizer;    (D) conveying the organic fertilizer containing water in the pond to a filter by a pulp pump to remove water; and    (E) conveying the dewatered organic fertilizer to a granulating machine to granulate, drying the granulated material by a drying machine, and cooling the dried organic fertilizer particles to obtain finished product.