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The influence of Mo on the microstructure, bending strength and HV of Ti/Al2O3 composite was studied, and the influence mechanism was analyzed . The results indicate that after the addition of Mo, the composite organization is finer and phases distribution is better-proportioned which make the microstructure denser , the bending strength and HV of composite are also increased to a degree . But the bending strength inceases first then decreases with the increasing of Mo content, so the appropriate Mo content for the Ti/Al2O3 composite is to be further confirmed.