The invention discloses an integrated process and system for resourceful treatment for household garbage. The integrated process for the resourceful treatment for the household garbage comprises the following steps: carrying out garbage sorting; carrying out recovery and reutilization on a part of the sorted materials; carrying out deep fermentation conversion and utilization on the sorted organicmaterials and a leachate; carrying out marsh gas power generation on biogas generated due to fermentation; preparing a solid organic fertilizer from biogas residue; and carrying out sewage treatmenton biogas slurry and then recycling. The integrated process and system for the resourceful treatment for the household garbage have the advantages of being pollution-free, harmless, and capable of carrying out complete resourceful treatment on the household garbage; the sorted organic matters are fermented at first, and the biogas with high combustion efficiency is generated for power generation,so that the power generation efficiency is increased, and the emission of harmful gases is greatly reduced; and the biogas residue and the biogas slurry are also correspondingly subjected to deep productization treatment, and sold for subsidizing the related expense generated due to the household garbage treatment, so that the financial expenditure of government operation for a garbage treatment plant is reduced, and reduced, resourceful and harmless treatment is much effectively carried out on the household garbage.