The invention relates to an ethylene propylene diene monomer material for a high-low-temperature-resistant sealing part. The ethylene propylene diene monomer material is prepared from the following steps: 100 to 120 parts of EPDM, 1 to 10 parts of organic zinc, 1 to 3 parts of nano zinc oxide, 50 to 70 parts of carbon black, 5 to 20 parts of paraffin oil, 1 to 8 parts of assistant cross-linking agent, 2 to 4 parts of anti-aging agent, 1 to 5 parts of peroxide, 2 to 5 parts of carbon fibers and other additives. The ethylene propylene diene monomer material can be used in a severe engineering environment, for example, used in a reamer shaft of a dredging vessel in a sealing manner, in the working environment of the dredging vessel, the content of minerals and sand in the water is high, so that the wear resistance and torsion resistance are needed, and in particular the wear resistance is needed in the twisting process; by adding the carbon fiber, the wear resistance of the rubber is effectively improved, and the wear resistance of the adhesive is provided under certain torque.