In this paper, hydrostatic bearing oil film thickness to maintain a uniform film does not change and all research and development goals, discuss controlling the flow speed of the displacement pump control laws to solve uneven film thickness and the film thickness becomes a problem with the load to the bearing carrier four displacement of a point, as the feedback signal flow and establish control methods hydrostatic bearing sub-systems. In this paper,LabView software to establish the sensing and control of man-machine interface to sense feedback and calculated program to achieve and so the film thickness control.