An electronic device is provide that may identify voiceprint data corresponding to a user from among at least one piece of voiceprint data, based on received user voice data, identify a general voice instruction included in the received user voice data, determine user preference information of the user, based on the identified voiceprint data, determine a control action for determining an action to be performed in at least one external device or the electronic device, based on the general voice instruction identified from the received user voice data, determine a personalized voice instruction, based on at least one of the control action or the user preference information, and transmit, to the at least one external device, through the communication circuit, an audio signal corresponding to the personalized voice instruction to be output by the at least one external device, or output the audio signal through a speaker included in the electronic device.