Large group of nurses involved in post-earthquake rescuing activities after this disaster occured in Chi-chi, Taiwan, September 21, 1999. Nurses in these rescuing medical teams encountered multiple-stressor situations. Offering debriefing groups for psychological support was necessary. This paper reviews and analyzes the nurses debriefing group, which was held in eight consecutive days within the period of providing medical and nursing services for people suffering from this disaster. In this debriefing group, members shared experiences, understanding for each other, catharsis, and proposed pragmatic suggestions for the disaster medical and nursing service team. The group leaders led discussions about post-disaster loss, stress, and grieving responses. The debriefing group helped nurses reorganize the segmented pieces of nursing experience in the disaster, and gain personal growth from this impressive experience.