Abstract: In order to enrich the optical teaching methods and solve the problems of low efficiency of traditional MATLAB GUIDE data transmission and its inability to run on the Web, this paper redesigns the framework of MATLAB App Designer to form a physics experiment simulation platform. In this paper, the designs of rectangular aperture diffraction, Newton’s ring, and grating diffraction are discussed in detail. The concept of the visible light color gradient simulation algorithm is proposed, and the connection with the server is completed, which can realize its operation on the Web. The system has good human-computer interaction, which can be accessed by students on the web page to improve teaching quality and cultivate students’ research ability and innovation ability.