Abstract: A method for a network apparatus to control power provision to a powered device is proposed. The network apparatus is configured for connection to the powered device, an electronic device, and a power supply device. The network apparatus permits transmission of electronic power provided by the power supply device to the powered device therethrough when the electronic device is communicatively connected to the network apparatus, and does not permit transmission of electronic power provided by the power supply device to the powered device therethrough when the electronic device is not communicatively connected to the network apparatus.