In order to improve the lubrication performance of tank turret seat ring in battle and increase the firing accuracy of tank gun while moving, the dynamic behavior and lubrication characteristics of tank turret seat ring under the influence of various factors such as different road grades were studied. Based on RecurDyn and SolidWorks software, a multi-body tank dynamics model was established, and dynamics simulation was carried out to obtain the dynamic characteristics of turret seat ring under different road grades, travel speeds and grease types. The elastohydrodynamic lubrication analysis of turret seat ring was carried out to reveal the evolution mechanism of lubrication characteristics in the contact micro-zone of tank turret seat ring under the action of road grade and grease. The results show that the faster the tank speed, the higher the road grade, the more severe the tank body vibration; The road disturbance has a great influence on the lubrication performance of the contact micro-area of the turret seat ring, and the oil film thickness is the greatest. Under heavy load conditions, the grease with high viscosity is better.