Abstract: The present invention discloses a topological structure light source driving method, a storage medium and an electronic device applied to off screen imaging. The method includes the following steps of: lighting up pixel points of one or more separate light source regions of a display panel, the light source regions being arranged in a topological structure and spaced by nonluminous pixel points, the light source regions including one or more pixel points; obtaining, through a light sensor, light of pixel points that is totally reflected by a light-permeable cover plate; the display panel and the light sensor are placed under the light-permeable cover plate. Distinguishing from the prior art, the above technical scheme, by one or more pixel points forming one light source, improves the brightness of the light source and enhances the quality of lens-free off-screen optical imaging, while having multiple light sources for image imaging also improves the imaging efficiency.