The laser texturing pins with different area ratio and height were processed on the die steel of 5CrNiMo to improve the service life of the mold.The effects of laser texturing on friction and wear properties of the die steel was investigated by using single factor alternate method.The results show that the area ratio of laser texturing has little effect on the friction coefficient of the sample after runningin,but the larger the area ratio of laser texturing,the smaller the fluctuation of friction coefficient of the sample in runningin time,and the better the performance of runningin.The height of laser texturing has large effect on the avereage friction coefficient of the sample,the samller the height of laser texturing,the smaller the average friction coefficient after runningin and stabilization.In both runningin stage and steady stage,the wear volume of laser texturing sample is reduced when compared with untextured sample.In addition,both larger area ratio and lower height of laser texturing could result in less wear volume.Compared with untextured sample,a laser texturing structure with 45% area ratio and height could reduced the friction coefficient by about 85%,the wear volume up to 99%,showing that laser texturing could be applied to optimize the tribological behavior of the plastic deformation mold.