The output power and frequency of the optical storage system using virtual synchronous generator (VSG) technology will fluctuate greatly when the operating condition of the system is changed. In order to slow down power-frequency oscillation, a multi-parameter cooperative adaptive control strategy is proposed, which can effectively suppress system fluctuation. First, based on VSG small signal model, the value range of virtual inertiaand damping coefficient D under the condition that the system meets the phase angle stability margin is derived. Secondly, considering that the active power sag coefficient Kf will change the sensitivity of the system’s power-frequency characteristics, a three-parameter collaborative adaptive change function including J, D and Kf is designed. In order to realize D slowly decreasing in the second stage and further increasing in the fourth stage, the integral term of frequency difference is introduced. To further verify the applicability of this method when the system is subjected to large perturbations, VSG transient stability analysis is performed on the basis of small-signal analysis. Finally, it is verified in the simulation model of Matlab/Simulink platform for different working conditions. The simulation results show that the system stability can be well enhanced with the improved method in both large and small disturbance conditions.