Wear resistance of machine parts is the main exploitation index of the quality of the design, and application of nanocoatings provides effective resistance to wear and ensures long service life of machine parts. Since any surface loses its mechanical characteristics in the course of operation, it is expedient to control the surface in order to determine its state. This article describes the methods of measuring the state of nanocoatings, specifically wear, using non-contact methods, with the goal to already use a specific method for determining the durability of the investigated nanocoatings in the future.