With the movement requirements of hydraulic cylinder under super gravity field, and to realize high frequency vibration of hydraulic cylinder, one radial hydrostatic bearing with four symmetry and equal area oil chambers was designed. The working principle of the hydrostatic bearing was introduced. The carrying capacity of the oil film was calculated. The material parameters of the oil film were obtained by fitting. The stress and strain of the oil film were analyzed. The results show that using hydrostatic bearing can meet the movement and load requirements of hydraulic cylinder. It provides a method for the design of bearing structure of hydraulic cylinder under super gravity field. 