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Steel 45 surface was treated as microtexture (groove patterns and concave pat terns) by using laser microtexturing technology. Friction and wear properties of the textured samples were examined by using an UMT〖CD*2〗2 wear tester in cam/roller simula tion work condition. As the results, the laser microtexturing surface was sign ificantly improved in the antiscuffing property and wear resistance compared w ith the conventional smooth surface. The textured surfaces with groove patterns had higher friction coefficients than the conventional smooth surfaces, while t he textured surfaces with concave patterns had lower friction coefficients than the conventional smooth surfaces. The results indicated that the groove patterns on the working surface increase friction and the cavity patterns on the working surface can reduce friction. It can be concluded that an optimal friction reduc tion effect of the textured surface can be obtained by choosing a suitable conca ve depth and the ratio of the projected area of the concaves with the total area of the working surface. 