针对工程机械质量评价过程中信息的不完全性和不确定性,引人指标分类权重概念,并采用信息熵进行定量描述,建立基于信息熵的多属性决策模型。应用该模型对液压挖掘机质量进行评价,对挖掘机的综合属性值进行排序和择优,结果与实际相符。 Aiming at the incompleteness and uncertainty of information in construction machinery quality evaluation, the concept of index classification weight is introduced, and the information entropy is used to describe quantitatively. A multi-attribute decision-making model based on information entropy is established. The model is applied to evaluate the quality of hydraulic excavators, and the comprehensive property values ​​of excavators are sorted and optimized. The results are in accordance with the actual ones.