Abstract: The present invention relates to a system for wirelessly transmitting and receiving self- powered power-free fixed temperature type fire detection, the system comprising: a self-powered fixed temperature type fire detector operating by the heat generated by fire occurrence and self- powered; a receiver for receiving and monitoring a fire occurrence signal through wireless communication according to the operation of the self-powered fixed temperature type fire detector; and an application part for allowing the signal received from the receiver to be notified in real time, wherein the fire detector is wirelessly installed, self-powered, and maximized in dust and water-resistant efficiencies.