The invention provides an abnormal state monitoring method for an industrial control system. The method comprises the following steps: monitoring and extracting state information of related parts by utilizing state acquisition modules distributed in the related parts of the industrial control system; transferring the abnormal state information in the collected state information to a calculation engine module through a state communication module; compiling an abnormal state analysis algorithm through an abnormal state analysis algorithm configuration module according to the need of abnormal state analysis; carrying out periodic calculation on the abnormal state analysis algorithm through a calculation engine module, and feeding back the analysis result of the algorithm to a human-computer interface configuration module and a data centre management module in real time; carrying out system structure and abnormal event configuration through a system structure configuration module according to the need of the abnormal state analysis to generate an abnormal event library; and obtaining real-time state data and abnormal state analysis result data carried out by the human-computer interface configuration module through the calculation engine module, and displaying the data on an interface, thereby improving monitoring capability of the industrial control system for the abnormal event.