Water-lubricated bearing can effectively relieve the marine pollution caused by the leakage of lubricating oil from the tail shaft of the ship.In order to study the effect of surface mesh texture on the friction properties of water-lubricated tail bearing.The fluid-solid coupling simulation of bearing models with different densities and depths was carried out by ANSYS.The bearing capacity of water film under different mesh conditions was studied.Based on the simulation results,3D printing technology was applied to prepare the mesh textured samples with different depth and density.The friction test was carried out using the CBZ-1 friction and wear tester,and the real time data of friction coefficient was collected .The worn surface topographies ofsamples were observed by surface profilometer.The simulation results show that under the condition of neglecting cavitation erosion,the water film carrying capacity is basically increased first and then decreased with the increase of the texture depth under the same speed condition.The testresults show that the appropriate mesh texture can effectively improve the lubrication condition of water-lubricated bearing,and then improve the friction and wear performance of the bearing.The mesh with a spacing of 5 mm and a depth of 1.5 mm can effectively promote the formation of the lubricating water film on the friction surface under the low speed condition,thereby greatly improving the lubrication condition of the friction surface,reducing the friction coefficient of about 22% and the wear of about 38%.Meanwhile,that mesh texture can still reduce thewear losses under the tested condition of high rotational speed