Provided are an apparatus and method for selecting a speaker by using smart glasses. The apparatus includes a camera configured to capture a front angle video of a user and track guest interpretation interlocutors in the captured video, smart glasses configured to display a virtual space map image including the guest interpretation interlocutors tracked through the camera, a gaze-tracking camera configured to select a target person for interpretation by tracking a gaze of the user so that a guest interpretation interlocutor displayed in the video may be selected, and an interpretation target processor configured to provide an interpretation service in connection with the target person selected through the gaze-tracking camera.