A new theory considers that 'suitably turbulent pulp' is more useful than "quiescent pulp" in fine particles flotation.Based on it,a new type of laboratory system of fine particle flotation column was designed and some small scale indoor experiments were conducted.The results indicate that under the same experimental conditions,both the concentrate grade and recovery of the new type of flotation column are higher than those of Jameson column and XFD flotation cell.Also the structure of the new type of flotation column and its working principle are introduced.