Communication engineering cable laying protection device

The utility model discloses a communication engineering cable laying protection device which comprises a plurality of horizontal plates, a plurality of T-shaped plates parallel to the length direction of the horizontal plates are arranged below the horizontal plates, the horizontal sides of the T-shaped plates are located below, one end of each T-shaped plate is sleeved with a limiting plate in a sliding mode, and the other end of each T-shaped plate is provided with a clamping groove. Right-angle triangular prisms are symmetrically arranged on the two sides of the horizontal plate in the length direction, the right-angle edges of one sides of the right-angle triangular prisms are attached to the horizontal plate, the other sides of the right-angle triangular prisms are attached to the ground, a supporting plate is fixedly connected to the lower portions of the side walls, close to the horizontal plate, of the right-angle triangular prisms, and an internal thread blind hole is formed in the end, in the length