Abstract: The turbulent lubrication performance of misaligned journal bearing was analyzed. Based on the unified Reynolds equation and energy equation considering the misalignment of the journal, the finite-difference method was used to calculate the turbulent lubrication performance of the journal bearing under different misalignment azimuth, degree of misalignment (DM), eccentricity ratio and average Reynolds number. The results show that when the azimuth angle of the journal was α=0°, the pressure peak of the bearing oil film moved toward the bearing end as the DM increased, and the axial oil film temperature gradient at one end of the bearing increased. When the azimuth angle of the journal was α=90°, as the DM increased, the bearing oil film pressure distribution gradually appeared double peak, and moved to both ends of the bearing, the axial temperature gradient at both ends of the bearing also increased. When the DM was large, the increment of the maximum film pressure, the maximum oil film temperature, the load-carrying capacity and the misalignment moment increased with the increase of the eccentricity of the central section of the bearing under the same DM increment. Under the same DM increment, the Maximum film pressure increment, maximum film temperature increment, load-carrying capacity increment, frictional coefficient reduction and misalignment moment increment increased with the increase of average Reynolds number. Therefore, it’s necessary to consider journal misalignment in the turbulent lubrication analysis of journal bearing.