The invention relates to a method for sectional enrichment self-heat exchange reduction emission of Sox and NOx of iron ore sintering fume, and is in particular applicable to iron ore sintering fume treatment process of the steel industry. The method can be established in match with companies with conventional sintering desulfurization processes, and can be also newly established together with developed sintering fume desulfurization processes. The method comprises a self-heat exchange process of low-temperature high-NOx and low-SOx fume and high-temperature high-SOx and low-NOx fume, a process of treating high-NOx fume by an activated coke secondary denitration device, a process of treating high-SOx fume by an activated coke primary denitration device, and an activated coke regeneration process. The process method provided by the invention is capable of sufficiently recycling waste heat of sintered ore and sintering fume and meanwhile reducing emission of SOx and NOx, has the advantages of being short in process, high in applicability, low in investment and operation cost and the like, and has great application values.