The results of the research on justification of the technology of hydraulic transportation of lead-zinc ore of secondary mining in the underground development of Spornoe deposit of Salair ore administration are presented. The developed technological scheme of hydrotransport combines into a single technological chain the transportation and lifting of ore mass with associated water removal and partial preparation of oxidized ores for concentration, significantly reduces the technogenic load on the environment and allows to significantly increase the efficiency of mining and processing as a whole.