Disclosed is a process for the preparation of probiotic yeasts in whole, live, non-freeze-dried cells in the form of microcapsules, which comprises: a) centrifugation or microfiltration of yeast cells from the culture broth; b) washing with water of the yeast cells and resuspension in sterile water; c) possibly, the addition to the suspension obtained in b) of bentonite, kaolin, silica, microcellulose, lecithinated sodium, and/or natural or hydrogenated vegetable or animal oils; d) drying at low pressure of the mixture obtained in c) at a temperature of between 20°C and 40°C to an H 2 O content of between 0.5 and 5%; e) addition of excipients to the dried substance and direct compression of the mixture; f) granulation of the tablets obtained in e); g) coating of the granules obtained in f) with molten wax.