Server cabinet with transverse plates capable of being quickly disassembled and assembled

The invention discloses a server cabinet with a transverse plate capable of being quickly disassembled and assembled. Comprising a cabinet body, a door body, a clamping plate, a transverse plate and four stand column frames, an inner cavity opening of the cabinet body is covered with the door body, the four stand column frames are fixedly installed at the four corners of an inner cavity of the cabinet body respectively, at least one cross beam rod is connected between the stand column frames located on the same side, threaded holes are formed in the cross beam rods, and a lap joint through opening is formed in the end face of one side of the clamping plate. The other end face of the clamping plate is provided with an inserting through opening, and the clamping plate is provided with an arc-shaped elastic piece extending outwards at the position of an upper end opening of the inserting through opening. According to the invention, the transverse plate can be directly translated and inserted by directly dependin