There are usual complex causal relationships among faults to constitute complex system. Based on the introduction
of Cellular Automata (CA) and its evolution theory, fault-relating pattern analysis method based on CA was studied.
Application of CA for fault-relating pattern was proposed. Extended CA (ECA) and its algorithm were also proposed.
Simulation and analysis for evolvement of complex process of multi-fault relating chain were realized. The example
analysis of mechanical system fault-relating based on CA shows that the proposed ECA method breaks through limit of
spatial rules and homogeneity homogeneous of CA and provides a suitable analytical tool for researches on fault-relating
pattern. The preliminary study and explore results show that the method can effectively reveal the association patterns
among many fault in the system.