NOVELTY - Restaurant-kitchen garbage is solid-liquid separated. The obtained oil-water mixed solution is oil-water separated to obtain crude oil and wastewater. The wastewater is pumped into a slurry adjusting tank. The crude oil is oil-water-separated to obtain biodiesel. The organic solid obtained by solid-liquid separation is crushed and fed into the adjusting tank. Slurry from the adjusting tank is pumped to an anaerobic fermentation tank. Biogas generated by fermentation is supplied as energy, and the residue is composted to obtain organic fertilizer.    USE - Kitchen garbage recycle processing.    ADVANTAGE - The method enables efficient recycling of kitchen garbage with reduced emission and environmental pollution.    DETAILED DESCRIPTION - Restaurant-kitchen garbage is sorted, metals are removed by magnetic sorting, and more than 80% block inorganic impurity is picked out and supplied for landfill. The sorted material is squeezed, dewatered, and solid-liquid separated into organic solid, grease, and water in the mixed solution. The obtained oil-water mixed solution is oil-water separated to obtain crude oil and wastewater containing organic fine particles and having a solid content of 2%. The wastewater is pumped into a slurry adjusting tank. The crude oil is oil-water-separated to obtain biodiesel by refining. The organic solid obtained by solid-liquid separation is crushed and fed into the adjusting tank for mixing. Wastewater and organic solid are mixed to obtain a slurry with a solid content of 8-10%. Slurry from the adjusting tank is pumped to an anaerobic fermentation tank and fermented at middle and high temperatures. The generated biogas is supplied for aeration treatment and more than 80% of ammoniacal nitrogen is removed. Extraction is then carried out under reflux. Biogas generated by anaerobic fermentation is desulfurized, dehydrated, and supplied as energy. The residue obtained by anaerobic fermentation is dehydrated and composted to obtain organic fertilizer. The waste liquid is supplied for aeration treatment in the slurry adjusting tank, and the residual portion of waste liquid is discharged into sewage disposal system.