A new technology of consolidated filling with single piping unclassified tail-ings in metals mines is described in this paper. In case of this technology, the full-water consolidating materials are used as consolidating agent, and unclassified tailings as aggre-gate; the filling slurry with a concentration of 60-70% gravitates to the underground stope through a single pipeline; the slurry will consolidate preliminarily after stilling for 40 min, and consolidate into the solid fillbody without dewatering, which can be loaded af-ter consolidating for 12h. Using this new technology can avoid the difficulties in piping the high-concentration slurry and the problems dewatering the medium-concentration slurry for cemented filling. This technology is simple and has a good benefit, thus it is of deploy-mental value.