Opening line pipe

The utility model discloses an opening line pipe comprising a pipe body; a pipe body wall is provided with a linear through slot penetrating the pipe body wall in a length direction; the pipe body is sleeved by a sleeve ring having an antiskid prism embedded in the linear through slot; the antiskid prism is 1-2 mm wider than the linear through slot; the pipe body has certain tension property; in wiring construction, a cable enters the pipe body from the linear through slot; the cable needs not to penetrate the pipe body from one end to the other end, thus improving construction efficiency; in addition, the pipe body is sleeved by a sleeve ring, so an opening maximum size of the pipe body is limited, thus preventing the pipe body from being broken caused by over large opening of excessive cables in the pipe body; the sleeve ring is provided with the antiskid prism 1-2mm wider than the linear through slot; the antiskid prism is clamped in the linear through slot so as to stop free sliding of the sleeve ring on one hand, and to stop the extruded pipe body from bending broken on the other hand; the sleeve ring and the antiskid prism are designed to greatly improve service life of the line pipe.