The invention provides a simulation method for a hydraulic revolving dynamic control system of a full-revolving thruster. According to the method, a dynamic system mathematical model that a pump-controlled hydraulic motor drives a transmission reducing mechanism to revolve is established according to the structural characteristics and working principle of the hydraulic revolving system, a control method for a target azimuth of the full-revolving thruster is proposed, control over revolving angles and revolving directions of the full-revolving thruster is simplified, and the control efficiency of the full-revolving thruster is improved. Through the method, a simulation model capable of realizing rotation in any horizontal direction of the hydraulic revolving dynamic control system is constructed, and the revolving motion law of the hydraulic revolving dynamic system can be simulated accurately and effectively; the method has guidance significance for research about a ship dynamic positioning system and a thruster control technology; finally, the method is applied to development of a full-revolving thruster maneuvering control simulator, can also be applied to design of a ship dynamic positioning system simulator and a ship motion maneuvering simulator and has important engineering application value and practical significance.