According to the structure of large-aperture telescopes azimuth shafting, ANSYS was utilized to establish the two-dimensional model. The contact stiffness, contact algorithm and other contact simulation parameters were analyzed and set. The results show that, compared with the classical Hertz contact theory, the error of maximum contact pressure and elastic approach which were calculated by ANSYS are 4.3% and 0.4%. The results verify the rationality of the model and the parameter setting in ANSYS analysis. Using the ANSYS model, the static analysis of the plane thrust bearing was conducted. A method for the drawing of static bearing capacity curve is established, which provides a reliable theoretical basis for the design of the azimuth shafting of large-aperture telescopes.