The wear behaviors of 304 stainless steel substrate and MoS2/C composite coating were studied on the impact equipment by balltoflat contact.The friction interface dynamic response and wear characteristics under different tribopairs were investigated.Results indicate that the impact contact stress and energy absorption rate of the specimen are increased with the increase of the elastic modulus of tribopairs,and the corresponding wear amount and wear rate also increase.The contact stress,energy absorption rate and wear of the MoS2/C composite coating are lower than that of the 304 stainless steel.The form of impact wear of MoS2/C composite coating is mainly delamination of the material and accumulation of abrasive debris.The wear mechanism of MoS2/C composite coating is plastic deformation and friction oxidation.