The invention belongs to the technology of marine communication and relates to a marine intelligent lamplight communication system. The system comprises an emitting light source capable of emitting a lamplight communication signal, a high-speed camera capable of receiving the lamplight communication signal, and a varifocal camera capable of obtaining an image of a communication counterpart, wherein the emitting light source, the high-speed camera and the varifocal camera are all mounted on an electrically-controlled adjustment seat; the adjustment action of the electrically-controlled adjustment seat is controlled by an adjustment controller; the emitting light source is controlled by an emitting controller to be lightened or not; a control instruction inputting part of the emitting controller is connected with a computer control unit; an output part of the high-speed camera is connected with the computer control unit by a data acquisition module; and a shooting image signal output part of the varifocal camera is connected with the computer control unit. The system can identify and transmit the lamplight signal through a computer, and is high in communication efficiency and good in accuracy.