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In order to obtain a combination of oxidation resistance and mechanical property,in situ hybrid TiC particles and TiB whiskers reinforced Ti6Al4V((TiCp+TiBw)/Ti64)composites with a novel network microstructure are successfully fabricated by two-step low energy milling and reaction hot pressing(RHP).TiCp and TiBw reinforcements with different volume ratio are in situ synthesized around the large Ti64 matrix particles,and subsequently formed into hybrid TiCp and TiBw network microstructure.Moreover,TiC particles self-assemble to compact TiCp wall in the network boundary;while TiB whiskers grow across TiCp wall as dowel connectors which can effectively link the adjacent Ti64 matrix particles.The bending strength of the novel composites increases from 668MPa to 962MPa,while the oxidation resistance decreases with increasing volume fraction of TiBw from 0.5％to 2％.The oxidation resistance of the composites can be effectively improved by TiCp reinforcement distributed by network microstmcture.In addition,the high temperature tensile strength of the hybrid composites is clearly higher than that of TiBw/Ti64 composites.