本文总结了作者在拱坝优化方面多年研究与实践的经验，特别是在优化模型的塑造、优化方法的选择和近似重分析技术等方面的成果与体会。对多个拱坝工程的实际应用表明，采用拱坝优化技术能够提高设计质量、节省大量的工程投资，具有显著的技术经济效益。已对有关算法建立了相应的软件ＡＤＣＡＳ和ＡＤＯＰＴ，性能良好，可供商用。 This paper summarizes the author’s many years of research and practice in arch dam optimization, especially in the aspects of shaping the optimization model, selecting the optimization method and approximate reanalysis techniques. The practical application of several arch dam projects shows that the use of arch dam optimization technology can improve the design quality and save a lot of engineering investment, with significant technical and economic benefits. The corresponding software ADCAS and ADOPT have been established for the algorithm, which has good performance and is available for commercial use.