Abstract:EPDM are applied to different solution and temperature in the simulation environment of aging laboratory simulation experiments,through the rubber samples before and after aging macro-mechanical analysis.EPDM aging at different temperatures and at different times,its hardness and tensile strength have undergone significant changes.Through the research on the changes of hardness and tensile strength of EPDM rubber in degradation process,it is found that the extent of aging is most serious in deionized water.The research of EPDM can help its stabilization and enlarging its application areas.