In the course of constructing the first-class national course“Coastal Dynamics”, a WeChat mini program for experimental courses is developed. The mini program has rich experimental materials, in which students can access teaching resources and watch demonstration videos and related cases at any time through their mobile phones. In the process of application, it adds the access of resources, such as “National Quality Resources Sharing Course”, “Jiangsu Online Open Course” and “Experimental Mu Course”, and the course resources are integrated to establish the sharing platform based on the the mini program, which saves the jump time of students’ cross-platform access. In the past two years since the application of the experimental class mini program, compared with the previous offline experimental teaching, it is found that the WeChat mini program has changed the students’ cognition of the experimental class, which is from the passive mechanical task completion to active thinking, active hands-on, and interactive communication. It creates a good teaching atmosphere for coastal dynamics experiment course, increases students’ interest and cognition in coastal dynamics course, and improves students’ ability of independent thinking and innovatived practice.