Disclosed is a method for reminding about an event. The method comprises: S101. constructing an event operation database, the event operation database saving card module operation marks corresponding to card modules of different types, and application control program marks corresponding to the card modules; S102. determining whether the card modules execute an event operation, and if so, querying, from the event operation database, a card module operation mark matching the event operation; and S103. based on the card module operation mark obtained by means of query, pushing an event operation notification message to an application control program having an application control program mark corresponding to the card module operation mark. Further disclosed is a system for reminding about an event. The present invention can provide a highly efficient and highly secure method for reminding about an event.