Computer network security management device

The invention relates to the technical field of computer networks, and discloses a computer network security management device which comprises a cabinet body, first sliding grooves are formed in the front surface and the rear surface of the interior of the cabinet body, a plurality of sliding pieces are jointly and slidably connected into the two first sliding grooves, and first frame plates are rotatably connected into the sliding pieces; and a rotating frame is rotationally connected to the inner side of the first frame plate, and a second frame plate is fixed to the position, located on the left side of the first frame plate, of the upper surface of the rotating frame. The distance between the first frame plates can be adjusted according to the size of network equipment, redundant sliding pieces can slide into the containing grooves during installation, the first frame plates, the rotating frames, the second frame plates and other structures are rotated and folded to be stored on the right side of the cabi