Preparation of Al2CoCrCuFeNi high-entropy alloy coating with thickness of 150μm on the surface of H11 steel by laser cladding technology was studied. The optimized multi-pass lap process parameters were obtained: the current was 270A; the scanning speed was 3mm·s-1; the defocus was fixed at-14mm; 40% track overlapping condition was used. The microstructure, microhardness and wear resistance of the coating were investigated. The results show that Simple solid solution phases were formed in the coating layer with a typical microstructure at the top of the cladding zone consists of equiaxed grains while that at the bottom consists of columnar grains, And metallurgical bonding is formed between the substrate/coating. The average microhardness of the coating layer shows 70% enhancement compared with that (HV 250) of the H11 substrate; The wear rate of the coated sample is 30% that of the H11 substrate. The coating layer exhibits great enhancement in microhardness and wear resistance compared with the H11 substrate.