The invention relates to the building pipeline connection technology, in particular to a pipeline fastening clamping ring. The clamping ring is of a cylindrical ring structure. The diameter of the inner wall of the clamping ring is in clearance fit with the outer diameter of a matched pipe, the clamping ring is made from crosslinked polyethylene materials with strong shrinkage performance, no chamfering structure is arranged at the front end of the inner wall of the clamping ring, and the inner wall of the clamping ring is provided with knurling teeth. The invention further discloses a knurling tooth machining technology. The structure of a traditional metal clamping ring is changed, the crosslinked polyethylene materials which are elastic, resistant to high temperature and capable of changing along with the environment temperature are adopted, holding force is kept, and the problem that a gap exists between the pipe and a pipe fitting main body and the problem that the clamping ring is rotated or loosened are solved. Meanwhile, plastic materials low in mass and low in price are adopted, the cost is low, market competitiveness is formed, and feasibility is high.