针对传统AHP的一致性检验采用特征向量法计算大坝安全指标权重时缺乏可靠的理论依据问题,提出了一种基于人工鱼群优化—层次分析法的大坝指标权重计算方法,将判断矩阵下的权值计算问题转化为约束求解问题,利用人工鱼群的智能优化搜索求得具有满意一致性的最佳权重。将该计算模型用于某大坝的安全指标分析中,与传统特征向量法相比,该计算模型结果更精确、更稳定,为大坝安全指标权重的确定提供了一种行之有效的方法。 Aiming at the consistency test of traditional AHP, the eigenvector method is lack of reliable theoretical basis when calculating the weight of dam safety index. Based on the method of artificial fish swarm optimization and AHP, a method of calculating the weight of dam index is proposed. The problem of weight calculation is transformed into the constraint solving problem, and the best weight with satisfactory consistency is obtained by intelligent optimization search of artificial fish stocks. Compared with the traditional eigenvector method, this calculation model is more accurate and stable than the traditional eigenvector method. This method provides a valid method for determining the weight of dam safety index.