The present disclosure relates to a battery pack and a wireless communication apparatus, and a wireless communication method thereof. The battery pack comprises a pack case; a plurality of battery modules mounted inside the pack case; a plurality of slave battery management systems (BMSs) that are mounted on each battery module and collect battery status information of each battery module; and a master BMS configured to receive the battery status information from each of the plurality of slave BMSs through radio frequency (RF) communication and integrate and manage the plurality of slave BMSs, wherein RF communication is performed between the plurality of slave BMSs and the master BMS through a repeater based on an active phased array antenna system.
