Ductile cast iron integrated anchorage anchorage system is a special anchorage developed for non-bonded prestressing tendons on the basis of summarizing the application of prestressing tendon anchorage in the past 20 years in China, which is characterized by the use of ductile cast iron in the tension end of the anchorage will be the integration of the pad plate and the anchor ring, the amount of material is low, the structure is compact, and the anchorage is reliable; the fixed end of the anchorage is designed as a friction piece extruded anchors, the production of extrusion anchors is convenient, and the anchorage is more reliable, and the performance meets the relevant requirements of national standard GBT143702000, and also applies to 2000MPa level prestressing tendons. Its performance meets the requirements of GB/T14370-2000, and it is also suitable for 2000MPa prestressing tendons. In addition, the biggest feature of this anchoring system is that it can realize the full-length closure of prestressing tendons.