Abstract: Provided are an apparatus and a method for auto-pairing of a remote controller using an NFC tag. In the NFC tag, a flag indicating whether to pair the NFC tag, identification information of the remote controller and security information are stored and transmitted to an NFC receiver of a controlled device upon tagging. The controlled device enters a pairing mode according to the value of the flag and the identification information of the remote controller and returns a confirmation signal. The remote controller, which receives the confirmation signal, also enters a pairing mode. In this state, the controlled device requests pairing from the remote controller in an RF communication manner, and pairing is established through an automatic authentication process.