Polymer sheet pile has been widely used in the treatment of inland waterways,but the problems existing in the construction process and corresponding measures have not been deeply studied.In this study,the application of polymer sheet pile construction technology is studied in combination with a waterway revealment project in Jiangsu Province,and the construction key points of polymer sheet pile are summarized.The causes of construction problems such as verticality deviation,pile sinking difficulty and axial tilt are analyzed,and specific treatment measures are given according to engineering practice.The results show that the appearance quality of sheet pile materials should be strictly controlled during storage,transportation and construction.During the construction process,the perpendicularity of sheet piles should be ensured within the permissible deviation range.The vibration pile driver should be selected with appropriate power to maintain the driving speed of sheet pile in a reasonable range.If necessary,a screw or water knife device is used to pilot holes to reduce friction resistance and ensure that the pile is in place.The research results can provide reference for the improvement and optimization of construction technology of inland waterway construction projects.