The invention discloses a land reuse processing method of a refuse landfill. The land reuse processing method of the refuse landfill comprises the steps of re-excavating, cleaning and treating the whole landfill, sorting humus soil, combustibles, recoverable substances, unrecoverable inorganic substances and dangerous and waste substances, transporting the humus soil to a soil treatment and desert treatment place, packaging and transporting the combustibles to a waste incineration power plant for incineration power generation, conducting harmless treatment and recovery on the recoverable substances, backfilling the unrecoverable inorganic substances in place, transporting the dangerous and waste substances to a dangerous and waste center and obtaining harmless land. The land reuse processing method has the advantages that the substances in the refuse landfill are re-smashed and sorted at a time, treatment scale, namely daily treatment tonnage can be ensured. After the landfill is treated and reused, a large amount of humus soil (nutritional soil) is obtained and can be used for planting woods, the woods absorb carbon dioxide and release oxygen, and atmospheric pollution and haze situation are improved. Land resources are reutilized, the arable land minimum in our country is guaranteed, and the land reuse processing method has immeasurable strategic significance.