Abstract: The invention provides a method of preparing a wear-resistant coating layer comprising metal matrix composite and a coating layer prepared by using the same and more particularly, it provides a method of preparing a wear-resistant coating layer comprising metal matrix composite, which comprises the steps of providing a base material, preparing a mixture powder comprising a metal, alloy or mixture particle thereof having an average diameter of 50 to 100 um and a ceramic or mixture particle thereof having an average diameter of 25 to 50 um in a ratio of 1:1 to 3:1 by volume, injecting the mixture powder into a spray nozzle for coating, and coating the mixture powder on the surface of the base material by accelerating the mixture powder in the state of non-fusion at a rate of 300 to 1,200 m/s by the flow of transportation gas flowing in the nozzle and a coating layer prepared by using the same whereby the coating layer with high wear resistance and excellent resistance against fatigue crack on the surface of the