High-entropy alloys (HEAs) is a kind of promising coating material due to their outstanding properties. Herein, a combined process was proposed for preparing AlCrFeNiTi_x HEAs-TiN ceramic coating composites on carbon steel surfaces, where nitride was come from BN separating agent between graphite mold and HEAs powders. The effect of Ti content on microstructure, ultimate tensile strength, hardness and wear resistance of the products were investigated, and the bonding mechanism was elucidated in this study. The results demonstrate that the composites have excellent hardness and wear resistance. The hardness of coating composites significantly increases with Ti content increasing. Extremely high wear resistance is attributed to the extremely high melting point and high thermal hardness of TiN effectively prevent oxidation deformation on the worn surface.