对由混联水库群和多分蓄洪区组成的复杂防洪系统，建立了大规模线性规划模型（ＬＰ模型）．针对该流域的洪水特性出现的正常行洪与扒口分洪的复杂洪水演进情况，提出了判断扒口分洪界点及其相应的分阶段解算的处理方法，从而形成了适用于这一复杂情况的广义化模型．引用先进的解算技术，对典型洪水的模拟计算，取得了较为满意的成果． Large-scale linear programming model (LP model) is established for complex flood control system consisting of multi-reservoir floodplain and multi-reservoir floodplain. In view of the normal flood discharge in the basin and the evolution of complex floods at the port flood diversion, a method to deal with the boundary point of floodwater diversion and its corresponding staged solution is proposed, and a method suitable for this complex situation The generalized model. Using advanced solution technology, the simulation calculation of typical flood has achieved satisfactory results.