在多级树形供应链网络环境下,基于实物期权策略并引入中断风险成本,建立了树形供应链应对中断风险的保护与应急模型,通过求解模型得到最优策略并进行了数值仿真分析.仿真结果表明该模型能够显著降低树形供应链系统的中断风险成本与系统中断时间,从而提高供应网络的鲁棒性. In the multi-level tree supply chain network environment, based on the real option strategy and the introduction of the risk of interruption risk, a tree supply chain protection and emergency model to deal with the interruption risk was established. The optimal strategy was obtained by solving the model and the numerical simulation was carried out. Simulation results show that the model can significantly reduce the risk of interruption risk and the system interruption time of the tree supply chain system, so as to improve the robustness of the supply network.