The variation of the oil film of thermal elastohydrodynamic lubrication （EHL）in smooth contact with large slideroll ratio using Eyring fluid flow model was studied.A mathematical model was established to describe the transient thermal EHL with large slideroll ratio using Eyring rheological model.A multigrid method was used to solve the Reynolds equation,the elastic deformation was solved by the multilevel multiintegration and the energy equations of oil film and both solids were solved with a linetoline scanning technique.Thus,numerical solution of thermal EHL problem for line contact with a high slideroll ratio was obtained.The results show that with the increase of slideroll ratio,the pressure is increased and oil film dimple emerges at the right side of the contact and moves toward the central contact area,the pressure peak becomes larger,and the dimple becomes deeper.The temperature rise curves are also increased with the increase of the slideroll ratio.At middle and high surface speeds,the maximum temperature rise curve gains a bump at the right side of the contact and then this bump moves towards the contact center.