The microstructure,phase structure and hardness of the newly developed low alloy wear-resisting steel contented Ti ANM450 and the contrast steel Hardox450 were studied.Three kinds of simulated mine water,week alkaline,and week acidic and high mineralized water solutions，were prepared based on coal mine atmosphere,and deionized water was used as a contrast solution.Wet sand abrasive wear test for the two steels were conducted in the four kinds of simulated mine water-sand slurry,and their corrosive wear property and mechanism as well as the action of corrosion to wear were investigated.The research results show that the microstructure of ANM450 presents lath martensite with TiC particles dispersion distribution along the rolling direction.In the four kinds of simulated mine water-sand slurry,the corrosive wear resistance of the new wear-resistant steel ANM450 is better than that of the contrast steel Hardox450,in which TiC particles play refining crystal grains and impeding to abrasives sliding.However,the action of corrosion promoting to wear of the new wear resistant steel ANM450 is higher than that of Hardox450 at load of 40 N,100 N and 140 N,which indicates that the interaction between corrosion and wear of the new wear resistant steel ANM450 is larger than that of Hardox450.