NOVELTY - Method for producing methane and fertilizer using kitchen waste, involves pulverizing kitchen waste after removing impurities, performing homogeneous treatment by analyzing rational matters in the kitchen waste slurry, performing anaerobic fermentation by delivering the obtained kitchen waste to the anaerobic digesting device, performing methane purification, ventilating methane residues and producing fertilizer with evaporation concentrated solution.    USE - The method is useful for producing methane and fertilizer using kitchen waste.    ADVANTAGE - The method completely recycles reproducible resources in kitchen water and is cost-effective.    DETAILED DESCRIPTION - Method for producing methane and fertilizer using kitchen waste, involves (a) selecting to-be-treated kitchen waste with vibration grille to obtain bulky sundries and removing impurities from the obtained waste material, (b) pulverizing the kitchen waste after removing impurities with mechanical crushing manner into kitchen waste slurry, (c) performing homogeneous treatment by analyzing rational matters in the kitchen waste slurry, where the rational matters are water content, ash content, carbon/nitrogen ratio, sugar content, protein content, fat content and temperature, and adjusting the slurry material property according to the analyzing result and condition requirements of the anaerobic fermentation, (d) performing anaerobic fermentation by delivering the obtained kitchen waste to the anaerobic digesting device to obtain methane and digestive juice, (e) performing methane purification by treating the generated methane by methane purifying system, (f) separating solid-liquid by entering the digestive juice to the horizontal spiral sedimentary centrifuge after passing the sludge cutting machine and charging pump, conducting solid-liquid separation in centrifuge and producing the methane residues and methane liquid, (g) ventilating methane residues until the water content is reduced to 60% or less to be used as organic fertilizer, (h) pumping the separated methane liquid into evaporation concentration device for evaporation concentration to obtain concentration liquid and distilled water, and (i) producing fertilizer with evaporation concentrated solution, where the concentrated solution after evaporation concentration treatment is directly used as normal organic fertilizer or processed into special fertilizer.