Al₂O₃-TiC_p (AT) composites are frequently used as materials for metal cutting tools due to their superior mechanical properties. However, conventional sintering methods for AT materials have limitations in terms of energy consumption and cycle time. Therefore, in this study, direct additive manufacturing of AT composite ceramic materials was investigated using laser directed energy deposition technology. Effects of different TiC_p ratios on the microstructure and mechanical properties of composite ceramic materials were explored. The results demonstrate that TiC_p particles are uniformly distributed throughout the matrix of the fabricated samples, leading to refinement of Al₂O₃ grains. Stress induced by mismatch between the thermal expansion coefficients of TiC_p and the Al₂O₃ matrix causes cracks to deflect and penetrates the particles, which consumes the crack extension energy and effectively suppresses the cracks in AT materials. Additionally, doping TiC_p particles affects the molten pool by increasing the gas escape rate and improving the material density. However, high TiC_p content aggravates the reaction with Al₂O₃ at high temperature, resulting in generation of gas and large pores in the composite material, which reduces the mechanical properties. Composites with TiC_p mass fraction of 30% exhibit the best mechanical properties, with a relative density of 96.64%, microhardness and fracture toughness of 21.07 GPa and 4.29 MPa·m^1/2.