As a thermosetting material widely used in the power industry

epoxy resin poses significant challenges for degradation and recycling due to its insolubility and infusibility. Traditional disposal methods

such as landfilling and incineration

not only pollute the environment but also result in resource wastage. Furthermore

most raw materials for epoxy resin are derived from petrochemical refining

exacerbating resource scarcity issues. Therefore

to achieve the degradation and recycling of epoxy resin and alleviate environmental pressure

this paper reviews the current status of degradation and recycling of electrical epoxy resins and their composites (anhydride-cured epoxy resin systems) both domestically and internationally through literature research. Furthermore

this paper provides an in-depth analysis of the degradation and recycling technologies for waste solid epoxy resins. Both physical and chemical recycling methods are summarized

in which the chemical recycling method is further divided into non-selective and selective approaches.Moreover

this paper discusses the advantages and disadvantages of each method and offers an outlook on the development trends in the degradation and recycling of waste solid resins. This review aims to provide a reference for achieving full recycling of epoxy resin composites.