According to the theory of lubrication，Numerical simulation of the deformation of the thrust bearingof the fixed inclined plane was carried out，by finite element numerical analysis method and using the ANSYSsoftware. The mathematical model of the oil film shape control equations about of the deformation and bearing isestablished. Analytical result showed that the force caused the tile surface generating concave deformation，andconvex deformation increased with the height and the size of the load and bearing;Tile surface temperaturegenerated convex deformation and increased with the height and the size of the temperature of bearing bush;Theactual deformation of the tile surface is the superposition of the force and the thermal deformation. This conclusioncan provide reference for the design and the application of thrust bearing，to reduce the tile surface，which is notconducive to the carrying capacity of the concave deformation.