The invention discloses an intelligent substation secondary safety measure information processing method based on rapid string matching. The method includes steps of performing coding pretreatment onsecondary safety measure rule knowledge base information, secondary safety measure system initial state information and precondition checking rule information; performing coding pretreatment on the current safety measure condition information and secondary system state information; calculating length of a mobile character string; matching the mobile character string; completing the matching process. The intelligent substation secondary safety measure information processing method based on rapid string matching has the advantages of improving the information processing speed in the intelligentsubstation secondary safety measure system and preventing the mis-operation; therefore, the method has extremely important practical significance.