A wireless relay device according to various embodiments of the present disclosure may include a communication circuit that receives, from at least one electronic device, a location information message including the location information of the electronic device. A processor may confirm the reliability of the received location information of the electronic device if the location information satisfies at least one defined criterion. If the reliability is confirmed, the processor may approximate location information of the wireless relay device by using the location information with confirmed reliability, of the electronic device.