Governing equations of central bump under elastohydrodynamic lubrication point contacts were established and then numerically solved by using multi-level method as well as multilevel multi-integration method.The pressure and film thickness were compared between the smooth surface and bumped surface.The effects of the applied load and entrainment velocity on the pressure distribution and film shape were discussed.The gained conclusions are listed as follows.In the vicinity of the contact center on central bump,the pressure experiences a fluctuation composed of a rapid increase and then a sudden decrease and finally a rising.The minimum film thickness appears at the contact center and there exists a dimple before the contact center.The film curve as a whole increases with the increase of the entrainment velocity or the decrease of the applied load.The minimum film thickness increases with the increase of the entrainment velocity whereas it hardly depends on the applied load.As the applied load increases,the maximum pressure increases whereas the local pressure fluctuation of the contact center is tiny.The maximum pressure as well as the local pressure fluctuation of the contact center decreases with the increase of the entrainment velocity.