The tailing slurry piping system in xiaotieshan mine was characterized byLong transport distance,high-density slurry,upward multi-stage piping,and non-mixingvertical bin used as the storing and feeding devices at the starting point.A brief intfoduc-tion to the general description of this system,technological features,operation conitions,technical index and pilot test results is given.The operation rate and transport characteris-tic of this system are described.The operation cost of this system is compared with that ofother transport systems,in which the superiority of this piping system is displayed.