遗传算法是一种新型的进化算法 ,它模拟生物界进化过程 ,从全局空间出发搜索问题的最优解。介绍了基于浮点数编码遗传算法的基本原理和方法 ,并应用遗传算法进行管网平差计算 ,结果表明 ,遗传算法适用于管网平差这一工程领域 Genetic algorithm is a new evolutionary algorithm, which simulates the evolutionary process of the biological world, starting from the global space search for the optimal solution. The basic principles and methods of genetic algorithm based on floating-point coding are introduced, and the algorithm of genetic algorithm is used to calculate the adjustment of pipe network. The results show that the genetic algorithm is suitable for the field of pipe network adjustment