In order to improve the tribological properties of aluminum alloys,the finite element method was used to simulate the bearing capacity of the lubricant film between the friction pairs of three different textures,such as square pit array,strip groove array and the combined texture array of pits and strip grooves.The influence of different texture sizes on the bearing capacity of oil film was explored.Simulation results show that the lubricant film on combined texture array of pits and strip grooves has the best bearing capacity.The texture array of square pits and strip grooves with regular morphology were prepared on the surface of aluminum alloy specimens by pulsed Nd:YAG laser.The friction properties of combined texture array specimens were tested by the CFT-I high-speed reciprocating friction and wear tester to study the effect of texture geometry on the tribological properties between the contact surfaces of friction pairs.The morphologies of the wear surface of the specimens were observed by the microscopy system.The test results show that compared with the non-textured surface,the average friction coefficient of the combined texture surface is significantly reduced,and the fluctuation range of friction coefficient is small.The specimen with texture size of 80 μm shows the lowest friction coefficient.The variation regulations of wear mark depth on matrix surface by test and the lift coefficient of lubricating oil by simulation are similar,which provides a certain theoretical basis for the design of micro-texture parameters.