NOVELTY - Preparation of mineral fertilizer from kitchen waste includes pre-treating kitchen waste, crushing; pulping, grinding, stirring; pumping into uniform metal dissolution dioxin removing device, adding humic acid and sodium silicate, emulsifying, adding ethylenediamine tetraacetic acid complex, removing heavy metal, performing microbial anaerobic fermentation, dissolving dioxin in organic solvent, flocculating, adding bentonite; dehydrating, adding culture solution and mixed straw powders, stirring; fermenting; and adding ligand, granulating, drying and screening.    USE - Method for preparing mineral fertilizer (claimed).    ADVANTAGE - The fertilizer improves product yield and quality. The method utilizes wastes which reduces pollution.    DETAILED DESCRIPTION - Preparation of mineral fertilizer from kitchen waste comprises: (A) pre-treating kitchen waste by washing, screening, magnetic separating and rinsing, removing metal and plastic, crushing to get kitchen waste coarse slurry; (B) pumping coarse slurry to binary pulping machine, grinding to 50-80 mesh, transferring to slurry storage tank and uniformly stirring; (C) pumping material slurry into uniform metal dissolution dioxin removing device, adding humic acid and sodium silicate at 1:1 mass ratio, emulsifying oil to remove lipophilic dioxin, separating animal and plant residues, adding 0.01% ethylenediamine tetraacetic acid complex, precipitating and removing heavy metal, blending 0.01 wt.% yeast, lactic acid bacteria, Aspergillus niger and methane bacteria for microbial anaerobic fermentation, dissolving dioxin in organic solvent, adding 0.02 wt.% polyacrylamide flocculants, flocculating fermented organic matter and floating, discharging, adding 1-3 wt.% bentonite, adsorbing nitrates and desalting; (D) dehydrating to 35 wt.% water content, adjusting carbon/nitrogen ratio to 25/1, adjusting carbon to phosphorus ratio to 100/1, adjusting pH to 6.5-7.5, adding 0.1 wt.% mixed Trichoderma, Actinomycetes, horse manure culture solution and 5-10 wt.% mixed straw powder, corn stalk powder and wheat bran, stirring; (E) fermenting at greater than 38 degrees C using solar heating superconducting radiator, keeping material temperature at 62-67 degrees C to obtain water-soluble organic matter, amino acids, proteins and dioxins; and (F) adding ligand, granulating, drying and screening.