Disclosed are an electronic device and a controlling method therefor. The method for controlling an electronic device according to the present disclosure comprises the steps of: acquiring first location information on a projection area of an image projected by the electronic device through a sensor; acquiring second location information about a location where a user is located through the sensor; and performing at least one of an operation corresponding to a voice input of the user and an operation corresponding to image quality processing, on the basis of the first location information and the second location information.