Abstract: The working characteristics of the linear compressor make it very suitable for the use of hydrostatic gas bearing technology to provide the radial support force required by compression piston to improve the self-lubricating characteristics between the cylinder and piston.In this paper,the finite volume analysis method is used to study the effects of small hydrostatic gas bearing structure parameters and intake pressure on its bearing capacity and gas consumption for static and dynamic pressure outlet conditions,the best geometric parameters are given,and the effect of the operation of the hydrostatic pressure gas bearing on the linear compressor was simulated and analyzed.It provides the optimization direc-tion for the design of hydrostatic gas bearings.