桥梁工程风险评价影响因素较多,且多具模糊性和不确定性。基于模糊一致矩阵的决策方法的不足之处,对模糊优先关系矩阵的构造、模糊一致矩阵的转化、排序方法等方面进行了改进。将改进后的决策方法用于桥梁工程项目风险的综合评价,为桥梁工程项目风险评价数学模型的建立提供了影响因素量化排序的分析方法。 There are many influencing factors in risk assessment of bridge engineering, and many of them have ambiguity and uncertainty. Based on the deficiencies of decision making method based on fuzzy consistent matrix, this paper improves on the construction of fuzzy priority relation matrix, the transformation of fuzzy consistent matrix and the sorting method. The improved decision-making method is applied to the comprehensive evaluation of the risk of bridge engineering project, which provides the quantitative ranking method for the establishment of mathematical model of risk assessment of bridge engineering project.