The invention discloses an intelligent operation and 
maintenance management method and 
system. A fixed monitoring product structure is changed into an open-type monitoring product which can be additionally provided with an intelligent 
maintenance strategy, and the data collection, 
abnormality judgment and 
data processing are separated from each other. The intelligent 
maintenance strategy with the clear boundary is taken as an independent program body, and can be loaded into the 
management system, thereby continuously improving the intelligent 
processing capability of the 
system. The method extracts the health standard of each 
management object correlated with the time dimension through employing an 
algorithm, continuously collects the operation data of all monitoring points, compares the operation data with the health standard of this time period, obtains a deviation value of health conditions, carries out the statistics of off-
normal conditions, and obtains the operation health degree trend of the 
system, finds a problem symptom, timely prompts a user, and takes preventive measures. The method can be suitable for different conditions, can be continuously changed according to the actual conditions, and continuously improves the operation and 
maintenance management level.