The present disclosure relates to an electronic device, an operating method thereof, and a
system including a plurality of
artificial intelligence devices. An electronic device according to the present invention includes a voice receiving unit configured to receive a voice, a
communication unit configured to perform communication with an
artificial intelligence (AI)
server set to be activated by a preset wake-up word, and a
control unit configured to acquire profile information through communication with at least one
artificial intelligence device communicating with the artificial intelligence
server, and register the at least one artificial intelligence device by storing the acquired profile information and a
list of
executable commands matched to the profile information. The
control unit searches for an artificial intelligence device to perform an execution command based on the profile information and the
list and transmits the execution command to the searched artificial intelligence device, in response to the voice including the preset wake-up word being received by the registered artificial intelligence device and the execution command corresponding to the voice being received from the registered artificial intelligence device.