The vertical profiles of the stratospheric ozone and aerosol in the presence of thick aerosol formations of volcanic origin in the stratosphere measured at the high—altitude lidar sounding station in Tomsk are presented. The experimental data and the factors causing the vertical stratification of the observed parameters are analyzed. The role of the aerosol cycle in the ozone destruction and the significance of the dynamic processes in the formation of the vertical distribution of the ozone concentration are discussed.