NOVELTY - Processing method for recycling the kitchen waste comprises: (a) solid-liquid separation of the kitchen waste, processing grains, yams, vegetables, meats and bones of animals, rubbish and sundries by adding yeast to ferment the grains and yams, adding vegetables to generate methane, liquid and solid fertilizer, recycling heat energy in the stream generated by the rubbish and sundries to prepare compound fertilizer and sterilizing the meats, bones, spurs and shells of animals to prepare pet food and (b) oil-water separation by floating and precipitating.    USE - The processing method is useful for recycling the kitchen waste, where the purified water is used to culture fish, plant the aquatic plants and irrigate farmland, and biodiesel, soap and glycerin are produced by the oil and methane is supplied for burning after dehydrating and for generating power after desulfurizing and the waste heat is recycled.    ADVANTAGE - The method produces several kinds of products with low energy consumption and high energy output.    DETAILED DESCRIPTION - Processing method for recycling the kitchen waste, comprises (a) solid-liquid separation of the kitchen waste comprising processing grains, yams, vegetables, meats and bones of animals, rubbish and sundries by (a1) adding yeast to ferment the grains and yams after heating, distilling to get ethanol and waste liquor, adding the waste liquor into a batch tank, (a2) adding the vegetables in the batch tank to heat to 28-55 degrees C after crushing, generating methane, liquid fertilizer and solid fertilizer by mesophilic anaerobic digestion, (a3) recycling heat energy in the stream generated by the rubbish and sundries after incinerating in furnace, mixing the ash, slag and the solid fertilizer to prepare a compound fertilizer, (a4) sterilizing the meats, bones, spurs and shells of animals after washing and crushing, adding ingredients necessary to prepare pet food; (b) oil-water separation comprising adding the floating slag and sediments in the batch tank after floating and precipitating, anaerobically fermenting water at normal temperature for 3-5 days to generate methane, passing it to cyclic activated sludge system, a biological reactor in the presence of oxygen, purifying the organic pollutants by aerobic microorganism to reach standard water quality.