In order to enhance application range and operation efficiency of the liquid sliding bearing, a kind of regulable liquid sliding bearing in highspeed roll grinder was designed. On this basis, structural performance of finite element analysis (FEA) of the bearing was performed by using of the FEA ANSYS software. The analysis results show that the bearing can all meet the requirement of the strength and stiffness while the bearing body is located in the middle and the left and right extreme regulation positions, thus, when the bearing is in any position of the regulation range, its structural performances can all satisfy the working requirement of highspeed roll grinding. These study results provides an important theoretical support for its practical application.