In this paper ,SIMI Motion three-dimension video and image resolution software is employed to research LI Ling ’s last three step approach to pole thrust take-off technology ,so as to reveal the technology features and then put forward reasonable proposals .The research shows that LI Ling's last three step approach ,the take-off time ,horizontal speed loss ,ankle joint angle ,take-off angle were consistent with the pole vault action require ,on the whole ,her technique is more reasonable ,but there are still large room for improvement ,such as overco-ming the knees flexion ,hip flexion ,truck backward and so on .%通过SIMI° Motion录像分析系统对李玲破女子撑杆跳高亚洲纪录时最后三步助跑至插穴起跳的技术动作进行运动学分析，进而揭示其技术特征并针对存在的问题提出合理性建议。研究结果表明，李玲的最后三步助跑、起跳时间、水平速度损失、踝关节角、腾起角等均符合撑杆跳高的技术动作要求，从整体上看，较为合理，但仍有较大的提升空间，如克服屈膝、屈髋、后倾等现象的出现。
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