The result of the survey on anti-bullying courses from 2007 to 2017 revealed that it lacked of intervene anti-bullying courses, and there were no courses developed by elementary school counseling teachers. Therefore, this study implemented a case study method and collected counselors' interviews, course materials, and assignments to explore the motivation and purposes of anti-bullying courses. The results of the study were as follows: (1) The motivation for teaching is to deal with the situation of bullying in the class. (2) The teaching purposes focused on "prevention" instead of "interventions", and the purposes and motivation are contradictory. The main reason for choosing a preventive course is that there is few evidence based anti-bullying intervention courses currently, therefore, teachers have no much options. The anti-bullying prevention course is preference for them. Moreover, teaching time is only 80 minutes, there is not enough time to teach anti-bullying intervention courses.