Abstract: A remote alarm method, including the following steps: during a predetermined time, at least one of the wireless remote alarm devices sends a push signal including the corresponding representative data; the processor analyzes the output, and suppose the corresponding representative data is not included, then the corresponding representative data will be added therein and the wireless push transmitter will be driven to continuously send the updated push signal including the added corresponding representative data; when the main alarm device receives the updated push signal, the processor thereof compares it with all of the corresponding representative data in the closed group to check the inclusion of each corresponding representative data in the closed group; and in case of lacking any corresponding representative data, the alarm indicator can be driven to send an alarm signal.