Based on the transient non-Newtonian thermal elastohydrodynamic model of point contact,the two surfaces of the ZrO2-Steel contact pair were respectively designed with transverse continuous wave-like rough topography to simulate the mutual influencing process between the transverse ridges under the rolling-slide condition.The influence of transverse roughness parameters and the contact size were also analyzed.Results show that a thicker oil film is generated when ZrO2 is set as the faster surface.Local high pressure and high temperature are produced with the relative movement of continuous transverse ridges,and the friction coefficient fluctuates in a decreased range on the whole.The larger the contact scale,the more obvious the thermal effect,the thicker the film thickness,and the smaller the friction coefficient.It shows that the continuous transverse ridges on both surfaces of the ZrO2-Steel contact pair contribute the improvement of tribological performance by decreasing the frictional coefficient under the full film lubrication.