With the development of aviation manufacturing

more advanced requirement of lubricating theory and technology research of the complex working condition is proposed.Point contact elastic hydrodynamic lubrication （EHL） extensively exists in higher pair contact part such as rolling bearing

and the actually working condition is the coupling of lubrication

contact and wear.Study on EHL has important theoretical significance and practical value to research the lubrication state and increase the lubricity of rubbing pair.The numerical calculation of point contact EHL mathematical model is carried out by adopting multigrid technique

using the calculation program compiled with Fortran language and display and analyzing calculation result with Origin software.Synthetically considering the major influence（ellipticity Ke

speed U

load W and material G and so on） on EHL and integrally grasping the characteristic of EHL

the theoretical basis for solving practical engineering problem is provided.