The invention provides an X-ray device, comprising a vacuum box which is sealed all around and is highly vacuum inside, a plurality of electronic emission units, an anode, a power and control system, and a plurality of targets. The plurality of electronic emission units are arranged on a plane in a two-dimensional arrangement manner on the wall of a vacuum box. The anode comprises the targets corresponding to the plurality of electronic emission units, and the targets are configured in the vacuum box in a manner of being parallel to the plane where the plurality of electronic emission units are in. The power and control system is provided with a high-voltage power supply connected with the anode, a filament power supply connected with each of the plurality of electronic emission units, a grid control device connected with each of the plurality of electronic emission units, and a control system used to control each power supply. The anode comprises an anode plate made of a metal material and is parallel to the upper surface of the electronic emission units. The plurality of targets are installed on the anode plate, and are respectively arranged corresponding to the positions of the electronic emission units. The bottom surfaces of the targets are connected with the anode plate, and the top surface and the anode plate form a preset angle.