The author tries to reduce the negative emotions of college students' social fear. Through three design experiments, the author analyzes the social problems and solutions of college students and carries out practical activities. From the initial individual design to the cooperative discussion of small groups to the establishment of a platform in the form of a community, social fear college students have always played an important role in it, and their negative emotions have been significantly reduced through activities and design participation. Therefore, I hope that students who are in social difficulties will bravely join us in common progress.