Provided by the present invention are a visible light communication blind area coverage and cross-regional handover method based on reflected light, comprising the following steps: step S1, a mobile intelligent device receives a reflected light signal from the side of an LED lamp in order to carry out communication; step S2, the mobile intelligent device controls a mirror that is arranged beside the LED lamp to rotate by means of a mobile network, so that a reflected light signal of the mirror may be irradiated to the mobile intelligent device in real time; and step S3, after receiving the reflected light signal, the mobile intelligent device performs seamless cross-regional handover communication when moving through a blind area and switches to an irradiation area of a new LED lamp. According to the present invention, wireless communication is implemented on the basis of the visible light in an indoor environment, and the mirror which may rotate along with the movement of the mobile intelligent device is arranged beside the LED lamp, so that an original communication blind area may be effectively covered without modifying original routes and lighting devices in the room. Thus, the implementation mode of the present invention is simple, effective, convenient and economical.