In this paper, based on the single chip microcomputer as the core, designed a set of automatic optical fiber lighting intelligent lighting system, automatic with light, by judging the intensity of light intensity to track the sun, each time after collecting voltage according to the two battery voltage value of different switching charge and discharge mode. On sunny days, the system collects sunlight efficiently through a daylighting device and transmits it to the room by optical fiber for lighting. At the same time, solar panels convert solar energy into electricity and store it in batteries for system operation and night lighting.