The present disclosure relates to a subscription server, a subscription terminal and an information subscription method and system. The method includes establishing content information of a request from a first entity as first information of an event after determining that request information of the request satisfies an event notification rule in a subscription resource, obtaining second information of the event according to an associated object of the subscription resource, and sending a notification message containing the first information and the second information to a notified party of the subscription resource. The present disclosure may be applied to avoid increasing the network load of a requester and a notifying party, and ensure that an event will be handled in time after the notification message of the event is received.