Abstract: The main technological processes for magnesium powder production are reviewed. The sensitivity to ignition was tested for four kinds of magnesium powder of which the D50 included 6, 47, 104 and 173 μm, as well as the minimum ignition energy (MIE) and minimum ignition temperature (MIT). Respectively, the MIE test results for the four samples are <2, 260, 300 mJ and >2000 J, and the MIT values for relevant dust clouds are 480, 520, 620°C and higher than 700°C. With respect to the MIT of a dust layer, all the values are higher than 450°C. Then, the risk of conventional technological processes of magnesium powder production and their possible ignition sources are discussed in a perspective of the sensitivity to ignition.