Abstract: A low-carbon economic dispatch model for microgrids is constructed that considers the coordination of multiple types of energy storage. The dynamic complementary characteristics of different storage systems are incorporated into a unified planning framework. Based on the equivalent cycle life theory, the depreciation cost of storage life is included in the total system operating cost. A bi-objective Pareto optimization system is thereby formed. An improved NSGA-II algorithm is proposed, which introduces layered chaotic initialization, adaptive crossover and mutation operators, and a constraint-feasibility-priority handling strategy. The effectiveness of the proposed model and algorithm is verified.