The invention discloses an iron oxide doped iron metal organic framework material and a green macro preparation method and an application thereof. The preparation method comprises the following steps:(1) grinding and mixing ferrous sulfate heptahydrate and trimesic acid evenly, adding a sodium hydroxide solution, transferring to a micro wave reaction kettle, carrying out ultrasonic treatment, heating, and cooling to room temperature to obtain a mixed liquid; and (2) washing the mixed liquid obtained in the step (1), centrifuging to obtain a solid, washing the obtained solid, and drying in vacuum to obtain the iron oxide doped iron metal organic framework material. A heterogeneous catalyst is synthesized by a microwave solid-phase co-crystallization method, the synthesis cycle is greatly shortened, the synthesis process is green, environmentally friendly and efficient, and the synthesized iron oxide doped iron metal organic framework material can make full use of an unsaturated metal site to efficiently activate persulfate to degrade organic pollutants, avoid the generation of iron mud, reduce the cost of synthesis of the heterogeneous catalyst material and the cost of degradationof organic pollutants, and improve water environment quality.