Smart meter apparatus for efficient power management and power managing method using the same apparatus

PURPOSE: A smart meter device and a power management method using the same are provided to reduce power consumption by controlling the on and off of power measurement of an individual electric device in the remote site by using IPv6. CONSTITUTION: A smart meter device(100) comprises a power measuring module(110), a switching module(120), a communication module(130), and a control module(140). The power measuring module measures power consumption of an electric device. The switching module lets on and off the supply of commercial power for the electric device. The communication module transmits power consumption measured in the power measuring module to a terminal or a smart energy server or receives an on/off control command for the supply of the commercial power from the terminal or the smart energy server. The control module controls the switching module according to the on/off control command.