Fuente: Wipo "IOT" Disclosed are a method for saving a battery of an IoT device and a server for the same. The method for saving a battery of an IoT device in the server including an IoT server and an IoT device comprises: a step that an IoT server transmits a data request message to an IoT device based on a predetermined polling cycle; a step that the IoT server receives a target measurement value and battery information from the IoT device; and a step that the IoT server selectively modifies polling time based on the battery information received from the IoT device. COPYRIGHT KIPO 2017