Abstract: According to the interference theory of light, a simulation platform capable of demonstrating optical interference phenomena is designed based on MATLAB App Designer, including five interference experiments, namely Young’s double slit, wedge, Newton’s ring, Michelson as well as Fabry-Perot interference. It can intuitively display the effects of relevant physical parameters on the interference pattern, and can also display the simulation results in the form of animation. The use of this platform can help students better understand the theoretical mechanism of optical interference, improve their logical thinking and scientific innovation ability, and also help online learning and hybrid classroom teaching.