In order to improve the tribological properties of Babbitt alloy under oil lubrication condition,a composite lubrication structure composed of hexagonal boron nitride(h-BN) solid lubricant and surface micro-texture was prepared by filling h-BN solid lubricant into the micro-textured dimples on the surface of Babbitt alloy by light curing method.The tribological properties of the composite lubrication structure and the mechanism of antifriction and lubrication under the condition of oil lubrication were studied.The results show that the tribological properties of the composite lubrication structure are much higher than that of the untextured and pure textured surfaces.When the dimple diameter is small and the micro-texture is between 10% to 20%,the friction coefficient of the composite lubrication structure is low.When the dimple diameter is large,the friction coefficient of the composite lubrication structure decreases gradually with the increase of dimple density.When the dimple density is less than 20%,the friction coefficient of the composite lubrication structure with smaller dimple diameter is low.As the dimple density reaches 30%,the friction coefficient of the composite lubrication structure decreases with the increase of dimple diameter.The composite lubrication structure can greatly improve the tribological properties of Babbitt alloy surface because the release of h-BN solid lubricant forms a solid lubricant film on the surface of Babbitt alloy,which avoids the direct contact between the Babbitt alloy surface at the thinner part of the lubricating oil film and the surface of 45 steel,and the micro-textured dimples after the release of h-BN play the role of collecting abrasive particles and storing lubricating oil.