The influence of the links of field crop rotation on the agrophysical properties of the soil in the zone of unstable moistening is relevant. The practical significance of the study lies in the possibility of using the obtained recommendations by enterprises in the cultivation of crops in order to obtain stable yields in the zone of unstable moisture. The experiment was conducted in the zone of unstable moisture in 2015-2018 on the plots of “Yurchenko” farm. The cultivation of winter wheat in a clean pair, leguminous crops, flax and in re-sowing in the zone of unstable moistening of Stavropol territory is analyzed. A study was conducted of the effect of the links of field crop rotation on the aggregate composition, water resistance and soil moisture. During the years of research, flax as a precursor of winter wheat showed a decrease in the coefficient of soil structure and the formation of a lumpy fraction. Pea is a favorable predecessor that increases the agrophysical properties of the soil. Improving the crop rotation in the “Yurchenko” peasant farm in the Aleksandrovsky district will improve the agrophysical indicators of soil fertility, therefore, to get higher yields and cultivate winter wheat profitably.