Method for preparing bio-organic fertilizer from animal waste and grain waste

The invention discloses a method for preparing a bio-organic fertilizer from animal waste and grain waste, which comprises the following steps: selecting dry animal waste, chaff, grape pomace, traditional Chinese medicine residue, EM probiotics and a bio-organic compound fertilizer in parts by weight, pulverizing by a pulverizer, mixing the pulverized dry animal waste, chaff, grape pomace and traditional Chinese medicine residue, and granulating to obtain the bio-organic fertilizer. The EM probiotics are added into the mixed materials for fermentation, turning is conducted once every 2-3 days, the pure organic fertilizer is subjected to granulation, drying and cooling, then secondary stacking fermentation is conducted, when the temperature is reduced to 38 DEG C, the EM probiotics are added for secondary fermentation, and the bio-organic fertilizer can be obtained. The animal waste is used as a main raw material, the rice husks, the grape pomace and the traditional Chinese medicine residues are used as auxili