给水管道造价公式的正确性直接关系到给水工程系统技术经济计算的科学性 .本文应用数理统计学中、能有效解决已知非线性关系式参数估计问题的麦夸尔特法 ,来推求给水管道造价公式参数 .其中造价公式的参数迭代初值直接由计算机来完成 ,参数估计不受人工干预 ,能够达到一举寻优的目的 .通过算例说明该方法实用可行 ,拟合精度较高 The correctness of the formula of water supply pipeline cost is directly related to the scientific and technical calculation of water supply engineering system.This paper applies the Macquarut method which can effectively solve the problem of parameter estimation of the existing nonlinear equations in mathematical statistics, Cost formula parameters.Among them, the iterative initial value of the formula of the cost formula is directly completed by the computer, the parameter estimation is not subject to human intervention, which can achieve the purpose of optimizing in one fell swoop.An example shows that the method is practical and feasible and the fitting accuracy is high