Method of treating of a sliding surface on a metallic machine part, which is suitable for sliding on a sliding surface of a machine counterpart, wherein said machine part, which comprises a pre-treated, sufficiently flat and smooth sliding surface at room temperature or increased temperature, which is lower than the temperature of plasticizing or melting point of said metallic material, of which the machine part consists, is surrounded by a protective atmosphere, after which said sliding surface is treated by directing a laser beam towards predetermined areas (100; 100') on said surface, namely for sufficient time that melting of the metallic material on the surface is ensured in each selected area (100; 100') of said machine part, which is exposed to said laser beam, wherein the movement of said laser beam across the surface is predetermined and controlled, especially by using an appropriate computer algorithm, which ensures on the one hand achieving of each desired dimension (B1, B2), and on the other hand also achieving of each desired distribution and density of areas (100; 100') on said surface of said machine part, which is exposed to said laser beams, characterised in that it comprises steps of i) applying an uniformly distributed layer of metallic particles in powder form with a predetermined and uniform thickness (Δ) across said pre-treated, flat and smooth sliding surface of the machine part, surrounded by said protective atmosphere; ii) directing said laser beam towards each predetermined area on said surface of the machine part, covered with a layer of metallic particles in powder form, for at least such time period, that the powder particles together with the surface underneath are completely or at least partially melted, namely to such extent, that particles may fuse with each other and directly or indirectly also with said surface, which is optionally followed by moving the laser beam towards the next area on said surface of the machine part, covered with a layer of metallic particles in powder form; and iii) removing any remaining with each other or with the surface of the machine part unfused i.e. unconnected metallic particles in powder form of said layer, from the surface of the machine part, wherein the thickness (Δ) of each applied layer of metallic particles in powder form on said sliding surface of the machine part is adjusted within a range between 5 and 100 μm, and wherein in said step ii) the laser beam is always directed towards the layer of metallic particles in powder form on said pre-treated flat and smooth sliding surface of the machine part within an area (100, 100'), the largest dimension of which, when observed on said surface, is 40 - 100 μm., and wherein in said step ii) between each neighbouring laser treated areas (100, 100') there are remaining untreated areas, which have not been exposed to the laser beam, the smallest dimension of which, when observed on said surface, is 5 - 50 μm. i) applying an uniformly distributed layer of metallic particles in powder form with a predetermined and uniform thickness (Δ) across said pre-treated, flat and smooth sliding surface of the machine part, surrounded by said protective atmosphere; ii) directing said laser beam towards each predetermined area on said surface of the machine part, covered with a layer of metallic particles in powder form, for at least such time period, that the powder particles together with the surface underneath are completely or at least partially melted, namely to such extent, that particles may fuse with each other and directly or indirectly also with said surface, which is optionally followed by moving the laser beam towards the next area on said surface of the machine part, covered with a layer of metallic particles in powder form; and iii) removing any remaining with each other or with the surface of the machine part unfused i.e. unconnected metallic particles in powder form of said layer, from the surface of the machine part, wherein the thickness (Δ) of each applied layer of metallic particles in powder form on said sliding surface of the machine part is adjusted within a range between 5 and 100 μm, and wherein in said step ii) the laser beam is always directed towards the layer of metallic particles in powder form on said pre-treated flat and smooth sliding surface of the machine part within an area (100, 100'), the largest dimension of which, when observed on said surface, is 40 - 100 μm., and wherein in said step ii) between each neighbouring laser treated areas (100, 100') there are remaining untreated areas, which have not been exposed to the laser beam, the smallest dimension of which, when observed on said surface, is 5 - 50 μm.