The invention relates to the technical field of display control, in particular to a split screen display method. According to the method, when a screen splitting triggering action is detected, a screen is split into a plurality of display areas, and the display areas are directly associated with the recently started processes, and display interfaces of the processes, so that a user can directly acquire required process interfaces after executing the screen splitting triggering action without further operation, and the operating process of the user can be effectively simplified under the condition of no interruption; moreover, the display areas are associated with a plurality of recently running processes, and the number of split screen areas can also be regulated in accordance with the number of the recently running processes according to needs to flexibly regulate the number of the display areas to effectively utilize screen resources, so that compared with the prior art, the method has the advantage that user experience in split screen operation can be effectively improved; a function module architecture is established, and a computer system is controlled by a computer program instruction to implement the method.