超视距威胁评估是决策级信息融合的关键问题,构造了基于空情态势威胁、飞机作战效能威胁、空情事件威胁及战术意图威胁等四类威胁,将要评估的目标集作为MADM方法中的方案集,将构造的四类威胁作为决策的属性,建立一个规范化的决策矩阵,用AHP方法求得四类威胁的权重,然后构建一个加权的规范化矩阵,最后求得每个方案的相对接近度,根据大小从高到低进行目标威胁度排序. As a key issue in decision-level information fusion, transcendental line-of-sight threat assessment constructs four kinds of threats based on situation threats such as air condition threats, aircraft combat effectiveness threats, air condition threats and tactical intent threats. The target set to be evaluated is used as the MADM method In this paper, we construct the normalized decision matrix by using the four types of threats as the attributes of the decision-making. We use the AHP method to find the weight of the four types of threats and then construct a weighted normalized matrix. Finally, we obtain the relative degree of each approach , According to the size of the target threat from high to low order.