Abstract: Using the high concentration tailing slurry which from classifier, flume test and rheological test, has been experimented, and deeply analysis about the law of flowing has been taken.Combining with rheological parameters of slurry, this paper found that there are different flowing characteristics between higher concentration tailing slurry and lower concentration tailing slurry, the main reason is that higher slurry has abundant hydration shell around fine tailings, which result in an obviously viscous of the flowing slurry system, so it's flowing characteristic is similar to soft-solid, contrarily, lower concentration tailing slurry has been totally segregate to be fluid and granular by free water.At the style of flowing, the higher concentration tailing slurry moving as a "sheet and cover" way, yet, the lower one showing a "squeeze and push" type.