The report deals with the results of field  research for forecasting of  the beach deformation of the  Black Sea coastal zone in Georgia - Ochamchire (Aphkhazeti), Batumi (Adjara)). The lab modeling  is used to illuminate the process of erosion, as well.  Phenomena that determine the coastal processes are rather diversified. Main reasons for the intensification of erosion is a violation of the natural regime of the coastal zone due to the capture  of coastal material, the construction of hydro technical facilities , and, as a result, breaking of the alongshore sediment flow.