Abstract: Aiming at the problem that the independent optical storage microgrid has large voltage fluctuation, power instability and the change of illumination environment will affect the load terminal voltage, the structure diagram of the independent optical storage microgrid system is constructed according to the event-triggered driving strategy, and the event-triggered driving protocol is designed.Then the perturbation and observation（P＆O） method is improved based on event triggering. In the photovoltaic power generation system, the maximum power point tracking control is realized based on the improved P＆O method, so that the system can maintain stable operation at maximum power operation.Aiming at the problem of excessive load terminal voltage deviation caused by time-varying illumination environment, an energy storage device based on event-triggered drive strategy control is proposed to be added to the system, and the load terminal voltage stability control is realized by energy complementation with the power generation system. Finally, the effectiveness and correctness of the proposed method and control strategy are verified by simulation experiments.