In order to analyze the effects of surface texture on mixed lubrication performance of waterlubricated bearings,a mixed lubrication model with surface texture under JFO cavitation boundary conditions was established based on the averaged Reynolds equation and then it was solved numerically.The Stribeck curves of waterlubricated bearings with different texture parameters were plotted.The results show that whether surface texture can improve the lubrication performance is closely related to the depthdiameter ratio and surface density parameters,and the introduction of texture does not necessarily reduce the friction coefficient of waterlubricated bearings.There is an optimum value of the surface density and the ratio of depth to diameter of the surface texture,which can produce the maximum film thickness ratio and the minimum friction coefficient of the waterlubricated bearing,and ensure the bearing to enter the hydrodynamic lubrication state from the mixed lubrication state at a lower speed.