The present disclosure provides a split-screen playback method, apparatus and device for lock screen video and a storage medium. The method includes: monitoring whether a screen enters a screen-locked state; upon monitoring that the screen enters a screen-locked state, obtaining at least two video files; playing the video files on different display areas of the screen, respectively; wherein a number of the display areas is consistent with a number of the video files. The present disclosure can implement split-screen playback for lock screen video without changing hardware of a terminal, thereby effectively improving the playback efficiency of the video, facilitating popularization and application, and providing good user experience.