Moral education defense is a beneficial attempt of ideological and political education for college students based on the working concept of narrative therapy. The two have common characteristics, such as taking story narration as the basic approach, paying attention to creating a warm and supportive atmosphere, externalizing and deconstructing problems, looking for special significance events, and introducing witnesses to consolidate positive forces.Moral education defense activities help college students to realize self education, change "hidden trouble" for the education resource, make good school spirit style through peer education tradition, the education process from "passive accept" into "initiative education", make student from "educatee" into "story narrative", make the teacher changed from "teacher" to "witness", effectively promote the ideological and political education work.