针对复杂的长江防洪系统优化调度问题 ,将大系统分解协调原理和网络分析方法相结合 ,提出了长江防洪系统网络分析分解协调优化调度方法 ,并运用 1931年、1935年和 1954年资料进行模拟仿真验证 ,计算结果表明 :程序运算时间明显减少 ,更利于实时调度 ;通过不同方法比较分析 ,提出的方法在计算精度方面有所提高 ,适于处理三峡水库的分级控制调度问题 . In order to solve the problem of complex Yangtze River flood control system optimal scheduling, this paper proposes a method of network analysis and decomposition coordination and optimal dispatching based on the principle of large system decomposition and coordination and network analysis, and uses 1931, 1935 and 1954 data to simulate The results of calculation show that the computation time of the program is significantly reduced, which is more conducive to real-time scheduling. Compared with other methods, the proposed method is improved in accuracy and suitable for the graded control scheduling of the Three Gorges Reservoir.