In order to improve the efficiency and accuracy of the calculation,different difference schemes were used to solve the gas film lubrication equation of the magnetic head/disk interface.The influence of different difference schemes on the simulation results of the pressure distribution of the gas film lubrication equation was studied.The corresponding discrete equation schemes of the six difference schemes,central scheme,upwind scheme,mixed scheme,QUICK scheme,exponential scheme and powerlaw scheme,were given,and the linear flow rate (LFR) model of the gas film lubrication equation was selected to simulate the pressure,and the simulated results were compared the exact solution.It is concluded that the six difference schemes can simulate the pressure distribution of the magnetic head slider,and when the grid density is large enough,the numerical solutions are consistent with the exact solutions.The exponential difference scheme has high stability under different grid densities,which has better simulation effect and is more efficient than other difference schemes.When the grid density is large enough,the central difference scheme is more efficient than the exponential difference scheme.