In order to study the influence of texture distribution angle on antifriction performance,the hydrodynamic lubrication theoretical model of single texture was established based on the Reynolds equation.The number of cavitation units was calculated,and the influence of texture distribution angle on hydrodynamic lubrication performance was analyzed from the perspectives of cavitation effect.The unit tribology experiment under the simulation working condition of rock bit sliding bearing was carried out,and the influence of texture distribution angle was analyzed by comparing the surface tribological properties of the friction pairs.The simulation results show that,the more the number of cavitation discrete unit of textured surface,the better the hydrodynamic lubrication performance.Unit tribology experiment results show that based on the mechanism of capture chip and reducing secondary wear of the textured surface,the longer the texture length of vertical sliding direction,the better the tribological properties.