应用系统分析技术进行坝系优化规划的研究，建立了一个具有多约束和多变量的非线性规划模型；论述了应用变量分割法求解上述模型与拉格朗日乘子法和罚函数法相比所具有的优越性；在具体实施变量分割法的过程中，通过对变量进基驱动力的研究分析，找到了剔除假可行解的办法，从而应用变量分割法处理奇异函数，且方法简便，紧扣实际，便于推广应用． Applying the system analysis technology to study the dam system optimization planning, a nonlinear programming model with multiple constraints and multivariate variables is established. The application of variable segmentation method to solve the above model compared with Lagrange multiplier method and penalty function method In the process of implementing the variable segmentation method, we found the way to eliminate the fake feasible solution through the research and analysis of the driving force of the variable, and then apply the variable segmentation method to deal with the singularity function, and the method is simple and convenient Practical, easy to promote the application.