In order to study the influence of initial surface roughness and surface texture on the tribological properties of friction pairs,the microdimple textures with different geometric morphology were processed on the surface with different roughness by laser microtexture processing equipment.Their tribological properties were tested on MMW1A through orthogonal friction test.The results show that the roughness has the most obvious effect on the friction performance in the mixed lubrication area.Thus,the greater the roughness value of the untextured rough surface,the smaller the friction coefficient.There are suitable geometric parameters of the microdimples and the initial roughness value to make the frictional properties of the textured rough surface be optimal.The initial roughness on the frictional properties of the textured rough surface is the most important in the mixed lubrication area,followed by the area and the depth of the micro dimples.The influence on the frictional properties of the textured rough surface by the interaction between geometric parameters of the dimples and surface roughness cannot be ignored.