演示实验是物理教学的重要组成部分,它能够帮助教师对教材内容进行直观化和形象化的讲解,还可以培养学生的学习积极性、主动性和创新精神,但是,要做好演示实验,需要创新,要把学生的观察能力、创新思维和动手能力紧密结合在一起.本文以“机械波”和“静电场”这两章中的演示实验为例,来说明如何在演示实验教学中进行创新. Demonstration experiment is an important part of physics teaching. It can help teachers to visualize and visualize teaching materials. It can also cultivate students’ enthusiasm, initiative and innovation. However, to do demonstration experiment, we need to innovate , We should closely combine the observation ability, innovative thinking and practical ability of students.This paper takes demonstration experiments in the chapters of “Mechanical Wave” and “Electrostatic Field” as an example to illustrate how to demonstrate in experiment teaching Innovation.