考虑到目前我国舰载直升机保障能力评估方面存在数据不完整、评估中需要考虑决策者偏好的问题，研究了基于离差偏好法的舰载直升机保障能力评估模型。在通过调研并考虑舰载直升机保障实际情况的基础上，构建了保障能力评估指标体系，并根据决策者的偏好建立了评估对象的互反判断矩阵；在保障能力评估中运用了离差偏好法，从对评估对象进行排序的角度对各个指标的权重进行了重新定义，建立了量值与偏好矩阵的偏差函数，通过实例分析表明该模型实用性较强，过程简单，适合现阶段舰载直升机保障能力评估问题的研究，具有一定的应用价值。

In view of the problems in ship-borne helicopter support capability evaluation,such as the data is incomplete,and the decision-makers preference needs to be considered in evaluation,a model for evaluating the ship-borne helicopter support capability based on deviation preference method was studied.On the basis of investigation and the reality of ship-borne helicopter support,a support capability evaluation index system was constructed,and a reciprocal judgment matrix for evaluation subjects was established according to decision-makers preference.A deviation preference method was adopted in support capability evaluation,the weight of each index was redefined from the perspective of sequencing the evaluation subjects,and a deviation function of the value with preference matrix was established.Its shown by case analysis that this model is more practical and simple in process,which is suitable for current study on the support capability evaluation problem of ship-borne helicopter and is of some application value.