Assembled communication screen cabinet

The utility model relates to a split mounting type communication screen cabinet which comprises a bottom plate, a top plate and four side plates. The edge of the top face of the bottom plate is provided with four clamping mechanisms allowing the side plates to be clamped in the single direction, each clamping mechanism comprises a clamping groove, a plurality of positioning holes are formed in the side wall of each clamping groove, the hole bottoms of the positioning holes are movably connected with positioning blocks through compression springs, and the ends, away from the compression springs, of the positioning blocks are provided with positioning parts. The side faces, intersecting with the hypotenuses of the right triangles, of the positioning parts are obliquely arranged in the clamping direction of the side plates. Four clamping mechanisms are arranged at the positions, corresponding to the clamping mechanisms of the bottom plate, of the bottom face of the top plate. Clamping blocks capable of being cla