A combined process of molten salt electro-deoxidation and vacuum hot-pressing sintering was proposed to prepare AlCrFeNiTi_x high-entropy alloy (HEA)-TiN ceramic coating composites on low-carbon steel surfaces, where nitrides were introduced from BN isolater between graphite mold and HEA powders. The effect of Ti content on the microstructure, ultimate tensile strength, hardness, and wear resistance of the composites was investigated, and the bonding mechanism was elucidated. Results demonstrate that the composites have excellent hardness and wear resistance. The hardness of composites is significantly increased with the increase in Ti content. The extremely high wear resistance is attributed to the extremely high melting point and high thermal hardness of TiN, which can effectively prevent oxidation deformation of the worn surface.