NOVELTY - Large-scale method for treatment of mixture of fermentation residues and livestock manure using maggot, involves preparing base material using fermentation residues and livestock manure, adding auxiliary agent to the base material, spreading mixture on bed, inoculating maggots into the mixture, adding fermentation residues, breeding maggots, adding fermentation residues, controlling moisture content of the mixture, harvesting maggots, separating and drying maggots for preparing feed, and subjecting remaining components to fermentation to obtain organic fertilizer.    USE - The large-scale method for treatment of mixture of fermentation residues and livestock manure using maggot (claimed).    ADVANTAGE - The method is performed simply, cost-effectively and environmentally-friendly.    DETAILED DESCRIPTION - Large-scale method for treatment of mixture of fermentation residues and livestock manure using maggot, involves (a) preparing base material by mixing fresh fermentation residues and livestock manure, stirring obtained mixture, and regulating pH of the mixture to greater than or equal to 6, (b) adding auxiliary agent to the base material, and controlling moisture content of obtained mixture, (c) spreading 10-40 kg mixture on 1 m2 of bed to a thickness of 1-4 cm, inoculating maggots into the mixture, adding 10-40 kg fermentation residues/m2 of bed, breeding the maggots for 12 hours, and controlling moisture content of the mixture at 45-85%, (d) breeding the maggots for 24 hours, adding 20-60 kg fermentation residues/m2 of bed, and controlling moisture content of the mixture at 45-80%, (e) adding 20-60 kg fermentation residues/m2 of bed, controlling moisture content of the mixture at 45-80%, and harvesting maggots, (f) separating matured maggots, washing the maggots, and drying the maggots at high temperature for preparing feed, and (g) subjecting remaining components which is obtained after separation of maggots to fermentation to obtain organic fertilizer.