A method and a system for displaying information and content in a lock screen system having a plurality of screens so as to provide a screen lock for preventing an unintended input of a user terminal device, and a computer-readable recording medium. The method includes setting information and content on a plurality of lock screen, displaying the plurality of lock screens, providing a screen movement between the plurality of lock screens, executing an existing external application so as to provide detailed information for the information and content displayed on the plurality of lock screens, unlocking the plurality of lock screens, and posting an advertisement on a part of the plurality of lock screens. Users can easily confirm simple information and content and use the as a new medium and means for expressing themselves by setting the lock screen windows according to the personalities of the users.