The effect of selected parameters on grinding process of two types of alumina in the rotary-vibration mill (RVM) was presented. The effect of mutual relation between filling, media and suspension ratios as well as the size of grinding media, time and frequencies of chamber mill on grinding of alumina was investigated and the kinetics of grinding of this materials was shown. Investigations revealed that it is possible to obtain fine alumina powders of alumina characterizing with d₅₀ approximately 3 μm and d₉₀ close to 10 μm during about 60 minutes of grinding in RVM. Also, the effect of mentioned above parameters on physical properties of moulders prepared from ground alumina powders was shown. The relations between grinding time and green and fire density and shrinkage was also presented and discussed. The results revealed that longer grinding time inreased both green and fire density and shrinkage of moulders.