空战目标威胁评估是协同多目标攻击空战决策的关键技术之一.针对传统空战目标威胁评估方法在确定权重系数方面的缺陷和不足,提出了运用信息熵方法来解决空战目标威胁评估问题.给出了信息熵方法确定威胁指标权重的具体步骤,建立了基于信息熵的空战目标威胁评估模型,并进行了仿真研究,仿真结果表明该方法是合理和有效的. Air combat target threat assessment is one of the key technologies in collaborative multi-target air combat decision-making.Aiming at the shortcomings and deficiencies of the traditional air-to-air target threat assessment method in determining the weight coefficient, this paper proposes an information entropy method to solve the threat assessment problem of air combat targets. The specific steps of information entropy method to determine the weight of threat index are established, and the threat assessment model of air combat target based on information entropy is established and simulated. The simulation results show that this method is reasonable and effective.