The present invention relates to a real-time electrocardiogram monitoring system and method, a patch-type electrocardiograph and a telecommunication apparatus. The real-time electrocardiogram monitoring system includes: a patch-type electrocardiograph which is attached to a skin of a subject in the form of a patch, measures an electrocardiogram of the subject, and generates and transmits first electrocardiogram data of a first frame format for near-field transmission of the measured electrocardiogram signal； a relay-type communication device which receives the first electrocardiogram data from the patch-type electrocardiograph, extracts electrocardiogram data, and combines the extracted electrocardiogram with identification information of the subject to generate second electrocardiogram data of a second frame format for far-field transmission； a monitoring server which receives the second electrocardiogram data from the relay-type communication device, extracts the electrocardiogram data and the subject identification information, and classifies, stores and outputs in real time the electrocardiogram data based on the subject identification information； and a repository which classifies and stores the electrocardiogram data. The real-time electrocardiogram monitoring system further includes: a broadcasting server which relays the electrocardiogram stored by the monitoring server to a remote place； and a viewer which views the electrocardiogram data received from the broadcasting server.
