The microgroove textures with different spacing and angle were processed on the 45 steel surface by selfdeveloped laser microtexture processing equipment.The tribological properties of reciprocating motion for the microgroove textured surface were tested on UMTⅡfriction and wear testing machine.The results show that the microgroove texture has better frictionreducing effect under oillubricated condition when the load is lower and the velocity is larger,and the average friction coefficient of the textured surface can be reduced by more than 60%.The effect of groove angle on the friction coefficient is affected by the load.Under the given load,these is an optimal angle to minimize the friction coefficient.When other geometrical parameters are the same,these is an optimal groove spacing to minimize the average friction coefficient,and the optimal groove spacing is not affected by load.