学生在中学已经学习了动量守恒定律的相关内容.如何在大学物理授课中体现相关内容的高阶性、创新性和挑战度，如何让学生感受到更多的新鲜感和深层次认知，是授课教师需要深思的问题.本文尝试将光学牵引力研究融入动量守恒定律的教学中，通过产生光学牵引力的物理机制的探讨，展示如何将前沿科学研究引入到大学物理教学中，以提高授课内容的高阶性、创新性和挑战度，激发学生的学习兴趣和对基础知识的深入理解.

Students already learned about the law of conservation of momentum in middle school. How to reflect the advancement, innovation and challenging in college physics teaching, and how to make students feel more fresh and deep cognition are the matters that teachers need to ponder. This paper attempts to integrate the study of optical pulling force into the teaching of the law of conservation of momentum, and through the discussion of the physical mechanism that generates optical pulling force, demonstrates how to introduce cutting-edge scientific research into university physics teaching, so as to improve the advancement, innovation and challenging of the teaching, and stimulate students' learning interest and in-depth understanding of basic knowledge.