Abstract: To achieve the renewable and self-sustainable energy requirements of island areas,a microgrid optimization scheduling model is designed in light of the rich renewable resources available on islands. The model aggregates output equipment,biomass waste conversion units,seawater desalination facilities and energy storage as part of the microgrid. Considering the uncertainties of wind and solar power,a stochastic scheduling optimization model is designed with the objectives of minimizing operational costs,environmental costs and risk values. This model is solved using a hybrid differential evolution algorithm. Case study analysis demonstrates that the model achieves multi-energy optimization for electricity,heating,gas and hydrogen,enhances the utilization rate of renewable resources such as wind,solar and biomass on islands,promotes the sustainable development of renewable energy and the clean and low-carbon transformation of energy structure.