Green disposal behavior is a key behavioral outcome in environmental protection. Existing research indicates that gamification platforms can stimulate green behavior in users. However, in the context of gamification, users' green disposal behavior intervention mechanism is unexplored. Based on goal frame theory, this study investigates the decision-making process of green disposal behavior of users on gamification platforms. Three findings emerged from analyzing user preferences, interactions, and gamification reward and punishment interventions. The results provide guidance and suggestions for designing the gamification platform, as well as the promotion of participation in social green disposal behavior.