Abstract: The transportation process on the pipeline delivery of slurry, due to the complicated fluid mechanics, that is the flowability, deposition, erosion, and pipe-laying slope limitation, greatly differs with the conventional transportation technology of oil/gas pipeline pipelining the gaseous or liquidus fluids on the transportation process. For this reason the author introduces in detail the features and several technical problems on the pipeline delivery of slurry, including the main research scopes and the application studies of slurry pipelining, and also introduces some built or under planning/design coal and iron slurry pipelines. In this paper, the author prospects for the development of slurry/coal slurry pipelines in the 21st century.