The patent abstract shows that the utility model belongs to the technical field of LED display screens and discloses a connecting device and an LED Display screen, the connecting device is used to connect the first frame and the second frame that are arranged oppositely. The first frame is provided with staples, and the second frame is provided with a cross beam. The connecting device includes a first connecting component and a second connecting component that are rotatably connected. The first connecting component includes a fixing mechanism and an elastic locking mechanism. The fixing mechanism is provided with mounting holes and staples. The elastic locking mechanism is clamped in the mounting hole along the first direction, and the elastic locking mechanism is reciprocally slidably connected to the fixing mechanism. The elastic locking mechanism always has a movement tendency to push the staple along the second direction so that it is embedded in the mounting hole. The second connection component includes a clamp piece, and the clamp piece can detachably connect the cross beam; the first direction and the second direction are arranged at an angle. The connection device of the utility model can realize quick disassembly and assembly without the need to disassemble fasteners, prevent the loss of fasteners, avoid structural interference during the assembly process, and improve the assembly efficiency of the LED display screen.
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