The present invention relates to a flexible electronic device, and to an electronic device and method for controlling a display. To this end, according to the present invention, the electronic device for controlling a display can comprise: a display configured to display a first application on a first area; and a processor, which detects a change in the form of the display, and is set to display, in response to the detection and on a second area of the display, a second application paired with the first application displayed on the first area.