The invention discloses a method for producing ethanol, soap and a feed from kitchen waste. The method comprises the following steps of step I, performing filtration; step II, performing crushing, andperforming saccharification; step III, performing fermentation, performing distillation, and performing rectification so as to obtain ethanol; step IV, performing refinement, performing decolorationand performing saponification; step V, adding methyl ethyl ketone peroxide and associative polyurethane to reach a precipitation and solidification state, so that soap is prepared; and step VI, mixinga feed additive with vinasse, and performing sterilization through ultraviolet radiation so as to obtain a feed, wherein the feed additive consists of tea polyphenols, berberine sulfate, jasminoidin,santoquin, butylated hydroxyanisole and citric acid. Through adoption of the method disclosed by the invention, the resource utilization rate of the kitchen waste is maximized, the produced ethanol can be used as fuel and an organic solvent, the produced soap has favorable functions of cleaning, emulsifying and sterilizing, the produced feed is high in safety, high in antioxidant ability and notliable to corrupt, the irritability resistance and the immune competence of animals are strengthened, and the yield is increased.