The invention provides a comprehensive garbage treatment method comprising the steps of primarily screening, separating, classifying materials to be processed, preparing renewable energy, and gasifying fuel, or the like. Without depending on the treatment manner of classified garbage collection, the provided garbage treatment method focuses on treating the decayed garbage with a massive treatment principle of 'combining a scattered manner with a centralized manner' being applied to the solid waste. The original ecological garbage and the decayed garbage are pre-processed in a small range, so as to generate a flammable renewable fuel; the flammable renewable fuel is collected in a large range, and is then gasified in a massive and centralized manner; the renewable substances and the non-renewable substances generated in the treatment are comprehensively utilized.