分振幅薄膜干涉是高等学校波动光学教学的重要内容，也是薄膜光学的理论基础.本文基于著名的光学薄膜仿真软 件Macleod，利用3D 绘图技术仿真了楔形薄膜分振幅干涉的相长和相消的情形.并仿真了薄膜干涉位相突变的情况，以及多层 结构高反射膜和减反射膜的情况.让学生理论解析联系软件仿真分析，更加形象具体的了解分振幅薄膜干涉，提高教学效果. 还让学生了解光学薄膜的光谱调控能力和广泛实践应用，提高学生的学习兴趣.

Amplitude-splitting thin film interference is an important content of the wave optics teaching in colleges and universities. It is also the theoretical basis of thin film optics. Based on the famous optical thin film simulation software Macleod，the constructive and destructive interference of wedge-shaped thin films are simulated by using the 3D drawing technique. The change of the phase of the light waves is simulated，as well as the multilayer structure with high reflective film and the anti-reflection film are also simulated. Let the students contact theory analysis with software simulation analysis，which will improve teaching effect because it make students understand amplitude - splitting thin film interference specifically and figuratively. It also enables students to understand the spectral regulation ability of optical thin films and its widespread application in the productive practice，so as to improve students' interest in learning.