To enhance the wear resistance and hardness of 316 stainless steel in automotive applications,an AlcocrFeNi eutec- tic high entropy alloy cladding layer was applied to the steel surface using laser cladding technology.The micro structure,phase composition,crystallographic characteristics,surface microhardness,wear resistance and wear mechanism of the eutectic high entropy alloy coating were analyzed by metallographic microscope (OM),scanning electron microscope (SEM),electron back- scatter diffraction (EBSD),microhardness tester and reciprocating friction and wear testing machine.The specific conclusions are as follows : The phase composition of AlcocrFeNi eutectic high-entropy alloy coating is Fcc phase and Bcc phase.The re- sults of EBSD show that the grain size of the coating is about 15.34 m,and there is a high dislocation density inside the coat- ing.The surface microhardness of the coating is 311 士10.2 HV, which is about 1.7 times that of 316 stainless steel matriX.The strengthening mechanism is solid solution strengthening and dislocation strengthening.The friction coefficient of the coat- ing is about 0.422, and the specific wear rate is 4.52× 10— 5 mm3/N.m,which is obviously better than 316stainless steel ma- triX.The wear mechanism is mainly abrasive wear,accompanied by slight adhesive wear.