A method for controlling an electronic apparatus is provided. The method includes, based on a user input for registering an external device being received, performing capturing through a camera of the electronic apparatus and obtaining an image, identifying a registrable device from among at least one device included in the image based on a signal received from an external device, displaying a graphic object indicating the registrable device in the image, and based on a user input for registering the registrable device being received, registering the registrable device as a controllable device.