在作战计划预测分析过程[1]中出现不利情况时，利用该预测过程所产生的推理网络对原因进行诊断，据此完善计划，取得预定的效果。这种基于推理网络的原因诊断方法主要包括3个步骤，即假设原因产生，基于指标排序的分析认证和使用推理网络的推理认证。 When unfavorable conditions arise in the process of forecasting and analyzing battle plan [1], we use the reasoning network generated by the forecasting process to diagnose the cause, so as to improve the plan and achieve the desired result. This method of reasoning based on reasoning network mainly consists of three steps, namely, the reason generation, indexing-based analysis and certification and inference authentication using inference network.