The centrifugal detached overrunning clutch is an important component in aviation transmission system. It has the characteristics of low-speed wedge transmission and high-speed centrifugal disengagement,which makes the contact load and speed of the clutch have different relations under different working modes.Therefore,it is necessary to analyze the elastohydrodynamic lubrication performance of centrifugal detached overrunning clutch under different working conditions.The elastohydrodynamic lubrication model of centrifugal detached overrunning clutch was established,the multi-grid analysis method was used for numerical solution,and the influence of the oil temperature and entrainment speed on the elastohydrodynamic lubrication performance of the overrunning clutch was analyzed.The results show that with the increase of oil temperature, the influence of entrainment speed on the oil film thickness and pressure of the centrifugal detached overrunning clutch gradually decreases,and the film thickness and oil film pressure distribution under different speeds gradually tend to coincide.With the increase of oil temperature and the decrease of entrainment speed,the minimum oil film thickness and secondary pressure peak-to-peak pressure gradually decrease, and the minimum oil film thickness and secondary pressure peak-to-peak pressure are significantly affected by the inlet oil temperature.The oil inlet temperature has a great influence on the EHL performance of centrifugal detached overrunning clutch,and reducing the oil inlet temperature will help to improve the EHL performance of overrunning clutch.