The invention provides an intelligent oil tank cover control device and the control method thereof, which belong to the automotive technical field. The invention solves the problem that the oil tank cover is not intelligent in the opening operation. The device includes an ignition switch, an oil tank cover closing switch, and an oil tank cover motor used for realizing oil tank cover opening/closing, and further includes a main control unit used for receiving and processing detection signals and then judging output control orders, and a camera used for collecting oil tank ambient environment image data, wherein an intermediate conversion unit is connected between the main control unit and the camera, an input port of the main control unit is connected with the ignition switch and the oil tank cover closing switch respectively, an output port of the main control unit is connected with the oil tank cover motor, and the main control unit is used for controlling the oil tank cover motor to operate to close or open the oil tank cover. The control method comprises the steps as follows: A, awaking the control unit; B, obtaining refueling information; C, executing control commands; and D, feeding execution results back. The control device and method can realize the automatic opening and closing operation of the automotive oil tank cover, and improve intelligence.