在高中物理教学中,教师如何在物理学科体系中找出学科内容的核心和主干,是现今高中物理教学最重要的部分,是实现教学价值的关键部分。通过对物理学科的发展、课程结构、学科专家视角进行分析,能够有效得出物理学科核心内容,而物理学科的核心内容是高中物理学科体系的中心,也是物理学科的主要部分。本文对学科核心内容进行分析,并以高中电磁学为例进行有效的研究,以实现物理学科核心内容教学的价值,推进核心内容教学的良好实施。 In high school physics teaching, how to find out the core and backbone of subject content in the system of physics is the most important part of high school physics teaching and the key part to realize the teaching value. Through analyzing the development of physics, curriculum structure and subject experts, the core content of physics can be effectively obtained. The core content of physics is the center of high school physics system and the main part of physics. This article analyzes the core content of the subject, and takes the high school electromagnetics as an example to carry on the effective research, in order to realize the physics content core value teaching value, promotes the core content teaching the good implementation.