In order to improve the aging resistance of non-asbestos gaskets,the non-asbestos gaskets was prepared with by beater-addition process by adding hydroxylated multi-walled carbon nanotubes.The compression rate,rebound rate and tensile strength of the gaskets before and after aging were tested with artificial aging tests.The effect of hydroxylated multi-walled carbon nanotubes on the aging resistance of non-asbestos gaskets was explored.The results show that adding hydroxylated multi-walled carbon nanotubes to the non-asbestos gasket formula can reduce the changes in compression,resilience,and tensile strength of the gasket samples before and after aging.As the mass fraction of hydroxylated multi walled carbon nanotubes increases,the performance changes of the gasket before and after aging first decrease and then increase.When the mass fraction of hydroxylated multi-walled carbon nanotubes in the gasket formulation is 1.2%,the aging resistance of non-asbestos gaskets is significantly enhanced and there is an enhancement of mechanical properties.