针对指标期望为随机变量情形的多指标决策问题,提出一种决策分析方法.该方法首先通过计算指标值相对于指标期望的损益值,将决策矩阵转化为关于指标期望的损益矩阵;然后运用随机占优准则,通过判断针对每个指标两两方案之间的随机占优关系,进而构建两两方案的随机占优关系矩阵,并使用PROMETHEE II方法对方案进行排序;最后以某研究所移动硬盘采购问题为例,对所提出方法的实用性进行说明. Aiming at the multi-index decision-making problem that the index expectation is a random variable, this paper proposes a decision analytic method. Firstly, the decision matrix is ​​transformed into the expected loss matrix by calculating the expected profit and loss value of the index value. Then, Dominance criteria, by judging the stochastic dominance relationship between two programs for each indicator, and then constructing a stochastic dominance relation matrix of two-by-two programs and using PROMETHEE II to rank programs; Finally, using a mobile hard disk Procurement issues, for example, the practicality of the proposed method will be described.