Apparatuses and methods related an electronic apparatus and a voice processing method thereof are provided. More particularly, the apparatuses and methods relate to an electronic apparatus capable of recognizing a user's voice and a voice processing method thereof. An electronic apparatus includes: a voice recognizer configured to recognize a user's voice; a storage configured to have previously stored instructions; a function executor which performs a predetermined function; and a controller configured to control the function executor to execute the function in response to the instruction in response to a user's voice corresponding to the instruction being input, and controls the function executor to execute the function in accordance with results of an external server which analyzes a user's voice in response to a preset dialog selection signal and a dialog voice for executing the function being input by a user.