The aim of the studies was to create a dry preparative form of a biopreparation based on Bacillus subtilis spores and the determination of an acceptable shelf life without significant loss of the spores viability. The technology for obtaining a dry formulation includes the following steps: cultivation of the bacteria B. subtilis in a liquid nutrient medium to the stage for the maximum sporulation; separation of spore biomass from the nutrient medium; adsorption of spores on a mixture of starch and powdered sugar and , if necessary, the subsequent addition of powdered sugar till creation a pulverulent stage. A mixture of sugar and starch with biomass ratio of bacteria spores and starch not more than 1:1 and biomass of bacteria spores and sugar not more than1:50 was used as a carrier. The storing of the drug in a plastic vial with a screw cap at room condition in the laboratory during 5 month has not changed the titre of spores in the preparation. The spore titre decreased from 8,6*109 spores/1 g to 5,7*109 spores/1 g when preparation was stored in the same condition for three years. The dry powder composition not only contributes to the preservation of spores in a viable state, but also provides a source for spores feeding when spraying plants with drug.