In order to provide a theoretical basis for reducing dust dusting, study the dusting characteristics of flake dust in production sites. Prediction calculation method of flake aluminium powder dust generation rate through research. Measure the mass loss of powder during different falling heights, different wind speeds and different solid flow diameters. The dust generation rate of the dust fall is calculated by mass loss of aluminium powder. Analyse the dust generation rate affected by falling heights, wind speeds and solid flow diameters. This study shows that the dust generation rate increases exponentially with the falling height, increases linearly with the wind speed, and decreases with the solid flow diameter. By combining these results with the dust generation theory by Marc. we obtained a calculation model of the flake aluminium dust generation rate, and this model has good accuracy with an average error of only 11.71% compared with the experimental values. (C) 2020 Elsevier B.V. All rights reserved.