The invention discloses a screen brightness adjustment method. The method comprises the steps of outputting a screen brightness adjustment interface, wherein the screen brightness adjustment interface contains a brightness adjustment seek bar; when a preset gesture of a user at an end point of the brightness adjustment seek bar is detected, obtaining target brightness pointed by the preset gesture, wherein the target brightness is not in a brightness extreme value range indicated by the brightness adjustment seek bar; and adjusting the brightness of a screen to the target brightness. The invention furthermore discloses a screen brightness adjustment apparatus, a terminal and a computer readable storage medium. The brightness adjustment range of the current screen is expanded; the conciseness of operation is improved; and the possibility of meeting the demand of eye use health is increased.