The hydrodynamic lubrication theoretical model of single textured surface based on Reynolds equation under the lubrication condition of Newtonian fluid was established,and finite difference method was used to study the hydrodynamic lubrication performance of different surface texturing.The skewness and kurtosis of textured surface were calculated,and the influence of texture type on hydrodynamic lubrication performance was analyzed based on the skewness and kurtosis of textured surface.The unit tribology experiment of the plungerrubber seal pairs of fracturing pump was carried out to study the effect of texture type on tribological properties of textured surface.The experimental results verify the rationality of analyzing the influence of texture type on lubrication performance from the perspective of skewness and kurtosis.The simulation results show that under the same condition,for different types of surface texture,the smaller the skewness and the higher the kurtosis,the better the dynamic lubrication performance of textured surface.For the three kinds of texture studied,the circular textured surface has the best hydrodynamic lubrication performance,followed by ellipse textured surface and bar textured surface.Similar to the simulation results,the experimental results indicate that the circular textured surface has the best properties of friction reducing and antiwear,followed by ellipse textured surface and bar textured surface.