The 3D microtextured journal bearing model was established using CFD software based on the NS calculation equation of the fluid,and the effects rules of micro texture distribution position on static characteristic of journal bearing were analyzed under the conditions of considering cavitation effects and not considering the cavitation effects.Results show that the maximum pressure of the oil film and the bearing capacity of the journal bearing are greater under considering cavitation effects than not considering the cavitation effects.Reasonable distribution of surface texture can effectively improve the bearing capacity of bearing and reduce the friction coefficient,and the effect is the most obvious for the micro texture which is distributed at the exit of the convergent gap.The effect of micro texture on the static characteristic of journal bearing is more obvious under not considering cavitation effects,and the micro texture can restrain the production of cavitation region when considering cavitation effects.