前言：本研究試圖運用Bion 團體發展概念分析邊緣型人格障礙之團體心理治療歷程。本門診心理動力—人際—存在取向團體自2001 年起於北市某醫學中心運作迄今，幾位邊緣型人格障礙成員也於2009 年完成治療。
方法：運用行動研究法，抽取2009 年7 月至2010 年6 月之團體記錄為素材，總計44 次團體歷程。結果與討論：本團體中的基本假設團體現象主要源於團體心理治療療程的提早結束以及成員離開團體的各類方式，呼應多位邊緣型人格障礙成員早期與重要他人分離的失落經驗。隨著團體凝聚力的建立，以及此時此地的技巧運用，有助於發展工作團體。在此歷程中，邊緣型人格障礙成員即使無法穩定參與療程，但是只要願意再參加，將有助於成員提升現實感與累積矯正性情感經驗，使用較多且適切的口語來表達情感。
結論：運用Bion 的團體發展概念分析團體歷程，有助於治療師辨識與因應團體焦慮，瞭解在提升邊緣型人格障礙成員的現實感後，使其能習得調控情緒能力，更能體認分離對自身的意義。

Objective: Using Bion's theory of group development, the authors intend to analysis the processof a long-term outpatient psychodynamic-interpersonal-existential group therapy forpatients with Borderline Personality Disorder (BPD) at a medical center in northernTaipei, Taiwan.Methods: Qualitative analysis was used to examine the data file from July 2009 to June 2010. Atotal of 44 group sessions were analyzed by using action research (Pam, 2003).Results: Most of the group members had negative experience of losing significant others,resulted in negative feelings about changes happened in the group and induced grouptension. The new-member- recruited-and-old-member-leave phenomenon every threemonth was a stress to all, separation issues become one of the group major issues. It couldbe observed that the group got stuck sometimes (e.g. be isolated by lacking eye-contactor verbal response, just guess what happened in the group but no evidence), and wasproductive sometimes (e.g. self disclosure immediately, be willing to listen andcommunicate). The former might related to "basic assumption group" which couldcompromise group effectiveness, and the latter was "work group" which could producesolutions and products of high quality and usefulness (Bion, 1959). The pivotal pointswere: 1) whether the therapists could recognize group members' unconscious anxiety ornot and 2) the group members' ability of self-perception and self-disclosure.Conclusion: Because patients with BPD have deficient ability of self-perception, results indysfunctional reality testing and much more group tension (Yalom, 1995). If thetherapists can recognize basic assumption groups, the work of the group will makeprogress. Patients with BPD will accumulate the ability of reality testing and correctiveemotional experiences.