A light emitting diode lamp box, the LED lamp box comprises a lamp box support, a canvas, a controller and a plurality of LED light source modules, the plurality of LED light source modules are fixed on the lamp box support, and the canvas, which covers the plurality of LED light source modules, is fixed to the lamp box support; the LED light source modules are electrically connected with each other; each of the LED light source modules comprises a plurality of LED lamp strips arranged in parallel and lamp-strip printed-circuit-board connectors configured for connecting the LED lamp strips, each LED lamp strip is provided with an input port and an output port, and each LED lamp strip comprises a plurality of LED lamps connected in series; and the plurality of LED light source modules are arranged in a matrix form; a light absorption layer is provided between the LED light source modules and the lamp box support, characterised in that the controller is electrically connected with the LED light source modules, so as to control the LED lamps in the LED light source modules by means of controlling the LED light source modules line by line; the LED lamp strips in any two LED light source modules are parallel to each other; two adjacent LED light source modules are electrically connected with each other through power lines and/or signal lines; each LED light source module comprises two lamp-strip PCB connectors, and the lamp-strip PCB connectors in two adjacent LED light source modules are electrically connected with each other through power lines and signal lines; one lamp-strip PCB connector in each LED light source module is electrically connected, by using the power lines, with one lamp-strip PCB connector of the adjacent LED light source module, and the other lamp-strip PCB connector in each LED light source module is connected, by using the signal lines, with the other lamp-strip PCB connector in the adjacent LED light source module; and in each LED light source module, the two lamp-strip PCB connectors are provided perpendicular to the LED lamp strips, and the two lamp-strip PCB connectors are spaced from each other. the plurality of LED light source modules are fixed on the lamp box support, and the canvas, which covers the plurality of LED light source modules, is fixed to the lamp box support; the LED light source modules are electrically connected with each other; each of the LED light source modules comprises a plurality of LED lamp strips arranged in parallel and lamp-strip printed-circuit-board connectors configured for connecting the LED lamp strips, each LED lamp strip is provided with an input port and an output port, and each LED lamp strip comprises a plurality of LED lamps connected in series; and the plurality of LED light source modules are arranged in a matrix form; a light absorption layer is provided between the LED light source modules and the lamp box support, characterised in that the controller is electrically connected with the LED light source modules, so as to control the LED lamps in the LED light source modules by means of controlling the LED light source modules line by line; the LED lamp strips in any two LED light source modules are parallel to each other; two adjacent LED light source modules are electrically connected with each other through power lines and/or signal lines; each LED light source module comprises two lamp-strip PCB connectors, and the lamp-strip PCB connectors in two adjacent LED light source modules are electrically connected with each other through power lines and signal lines; one lamp-strip PCB connector in each LED light source module is electrically connected, by using the power lines, with one lamp-strip PCB connector of the adjacent LED light source module, and the other lamp-strip PCB connector in each LED light source module is connected, by using the signal lines, with the other lamp-strip PCB connector in the adjacent LED light source module; and in each LED light source module, the two lamp-strip PCB connectors are provided perpendicular to the LED lamp strips, and the two lamp-strip PCB connectors are spaced from each other.