A bendable display device and a display method of the bendable display device including a bendable display are provided. The bendable display device includes a display; and a controller configured to display an object on the display, and in response to receiving a user input in a state which the display is rolled, change the object displayed on the display. The method includes displaying an object on the display; and in response to receiving a user input in a state which the display is rolled, changing the object displayed on the display.