A multi-frame display method applied to a display device. The method includes: when performing a bending split screen on a curved surface display screen according to a predetermined fold line, acquiring a first position information of the predetermined fold line on the screen, wherein at least two curved surface display screens face different orientations; dividing a display interface of the screen into a plurality of first display sub-interfaces according to the first position information; when drawing a track on the first display sub-interface, acquiring a second position information of the track in the first display sub-interface; dividing a display interface of the first display sub-interface into two second display sub-interfaces according to the second position information; acquiring display contents in the first or second display sub-interfaces selected by the user; and displaying the display content selected in the first or second display sub-interface through the first or second display sub-interface.