The present invention is applicable to the field of multi-screen display technologies. The method includes: detecting a sliding track of a user on the primary screen display device, where the sliding track includes a sliding direction, and an initial position and a real-time position of sliding; determining, according to the initial position and the real-time position of the sliding, a display area of a screen of the secondary screen display device after the sliding by using the sliding direction as a reference direction; tailoring currently displayed content of the primary screen display device according to the display area, to obtain tailored content; and sending the tailored content and the display area to the secondary screen display device, so that the secondary screen display device displays the tailored content on the display area.