根据多传感器最优决策融合的信息模型提出了多传感器决策融合熵的概念；推导了多传感器系统最优决策融合的熵规则．分析了该方法对融合系统的可靠性和虚警率的影响，表明该方法对提高融合系统品质具有重要意义 Based on the information model of multi-sensor optimal decision fusion, the concept of multi-sensor decision fusion entropy is proposed and the entropy rules of the optimal decision fusion of multi-sensor system are deduced. The effect of this method on the reliability and false alarm rate of the fusion system is analyzed, which shows that this method is of great significance to improve the quality of the fusion system