A user terminal device and a displaying method thereof are provided. The user terminal device includes a display configured to be divided into a first display area, a second display area, and a third display area along a first folding line corresponding to the first hinge and a second folding line corresponding to the second hinge and a controller configured to, in response to the first bending interaction of unfolding the display with reference to the first folding line being detected, control the display to display an execution screen of the application including a first function and a second function, related to the first function, in the first display area and the second display area, and in response to a second bending interaction of unfolding the display with reference to the second folding line being detected, control the display to display an execution screen of the application including the first function, the second function, and a third function, related to the second function, in the first display area, the second display area, and the third display area.