从系统动力学原理出发，利用影片解折技术与赛艇推力遥测系统为辅助，为赛艇直线运动建立数学模型。导出了评定划桨动作技术水平的解析式。从划手体能消耗和获得最大推力冲量出发，提出提高赛艇划桨技术水平的几条途径，为赛艇划桨动作的计算机辅助分析与优化提供理论依据。 Starting from the principle of system dynamics, using film unzipping technique and rowing thrust telemetry system as an aid, a mathematical model for rowing linear motion is established. The analytical formula for assessing the technical level of paddle action has been derived. Based on the energy consumption and the maximum thrust impulse of swordsman, several ways to improve the skill of rowing and paddle are put forward to provide theoretical basis for computer aided analysis and optimization of rowing.