“微元法”在高中物理中有重要作用,尤其对于无法直接用我们熟悉的物理规律求解的物理问题,可借助“微元法”从部分到整体的思想,使所求问题简单化,也有利于学生理出清晰的解题思路。本文对“微元法”在高中物理解题中的应用做一分析。一、“微元法”的概念与解题的基本方法“微元法”的核心思想在于将研究对象设定为一个无限小的部分,取出其中最有代表性的一部分进行研究分析,再从局部的研究不断扩大得出研究成果。利用“微元法”解题时的主要步骤为:首先,明确研究对象,选出合适的微元;其次,列出相关的微元方程; “Micro-element method ” plays an important role in high school physics. Especially for the physical problems that can not be directly solved by our familiar physical laws, we can use the “micro-element method” to make the problem from part to the whole. Simplification, but also conducive to students to understand a clear problem-solving ideas. This article analyzes the application of “Micro-element Method” in solving high school physics problems. First, the “micro-element method” concept and the basic method of problem-solving “Micro element method ” The core idea is to set the research object as an infinitesimal part, remove one of the most representative part of the study Analysis, and then from the local research continue to expand to draw research results. The main steps in solving the problem using “micro element method ” are as follows: Firstly, the research object is defined and the appropriate micro-elements are selected; secondly, the relevant micro-element equations are listed;