This paper discusses the Dynamic Causality Diagram and its application in complex system, focuses on the reasoning theory and algorithm of causality diagram of complex system (CDCS).

• 针对复杂系统的模糊性、时间动态性、相关性等分别提出了模糊因果图理论和推理算法,带时间延迟的因果图迭代推理算法,复杂因果图正则分解和推理算法。 针对复杂系统建模困难,提出了复杂因果图的合成方法。