The invention discloses an intelligent building optical fiber communication system, which comprises an upper computer, a split screen module, a database and a communication module, wherein the split screen module, the database and the communication module are connected on the upper computer; the communication module is connected with at least two field modules, and the split screen module is connected with at least two display screens; the upper computer receives the field data sent by the field modules, processes the field data and sends the field data to the split screen module; the split screen module receives the field data sent by the upper computer, performs split screen processing, and sends the display data to each display screen for display; the display screen receives the displaydata sent by the split screen module for display; the database provides data support and data storage services for the upper computer; the communication module establishes a connection between the upper computer and the field module; and the field module collects a field area and various data, and sends the field data to the upper computer.