高中物理学习上,力学问题是重难点知识,是升学考试无法避免的考查点,同时是课程学习的重要内容。而在各科学科中,“对称性”原理被广泛的应用在“力学问题”的解答上,其可以看做是一种逻辑技巧。文章对高中物理力学问题的探讨,以对称性为中心,解决抛体运动、物体质量分布不均匀、特殊类碰撞问题,激发学生求知欲望,引导其对物理力学的学习方法,能够正确的掌握,促使学生真正投入进物理力学教学过程中。 Physics study in high school, mechanical problems are heavy and difficult knowledge, is the entrance examination can not avoid the test point, is an important part of course learning. In all sciences, the principle of symmetry is widely used in the solution to the problem of mechanics, which can be regarded as a logical technique. The article discusses the problem of high school physics and mechanics, focusing on symmetry, to solve the problem of projectile movement, uneven distribution of mass of objects, collision of special classes, stimulating students’ desire for knowledge and guiding their learning methods of physical mechanics, Promote students to really into physical mechanics teaching process.