The fixed offshore wind turbine will produce multiple types of sway under the combined action of random wind load and wave load . Aiming at the pitch phenomenon with inverted pendulum motion characteristics, this paper proposes an ocean wind turbine active inertia driver (ARID) control system, which uses a servo motor to drive the rotating inertia mass to generate a torque opposite to the structural swing direction, thereby reducing the pitch motion of the wind turbine. Firstly, based on Lagrange principle, the analysis model of marine wind turbine ARID control system is established. Secondly, the effectiveness of the marine wind turbine ARID control system is verified by using Simulink, and the influence of system parameters (control algorithm parameters, moment of inertia ratio) on the control effect is analyzed. Finally, the shaking table test of the marine wind turbine ARID system is designed, and a variety of load excitation forms are set to verify the stability and broad-spectrum effectiveness of the control system. Numerical simulation and test results verify the correctness of the analysis model, and show that the ARID system has a significant control effect on the swing control of offshore wind turbine, which lays a theoretical foundation for the swing control of ARID control system on the structure with inverted pendulum motion characteristics.