A system for automated integration of events, configured for use in a building with a network system, includes a plurality of surveillance systems, a processing center connected to the surveillance systems through the network system and a user device connected to the processing center through the network system. The surveillance systems are adapted to monitor various kinds of irregular events occurring in the building and the surroundings thereof and output corresponding event messages through the network system. The processing center receives the event messages in a preset receiving mode and further classifies and analyzes the event messages. The user device allows users to input filtering conditions and enables the processing center to integrate the classified and analyzed event messages according to the input filtering conditions so as to generate composite filtered messages to be displayed on the user device, thereby achieving efficient acquisition and integration of the event messages.