In this paper, the traditional hydrostatic characteristic formulas of hydrostatic bearing, or slide guide, are analyzed. These formulas aren't used to calculate and design the parameters of hydrostatic bearings due to the innate defects. At the same time, new formulas for hydrostatic characteristic of bearing are presented .Using new formulas to design and calculate the parameters of hydrostatic bearing may got exact results quickly and efficiently, because the new formulas can reflect the nonlinear relation between the static load forced on the axle neck and the bearing clearance.