承諾維持是同志長期伴侶關係經營的重要秘訣，也是預測伴侶關係是否得以繼續發 展及穩定度的重要指標。本研究採滾雪球取樣，利用網際網路，進行個人自陳問卷調查， 探討女同志承受外界壓力、家人接納度與個人身份認同對承諾維持的影響關係，共回收 有效樣本為518 位女同志。本研究結果發現，個人身份認同受到外界壓力與家人接納度 的影響，且對於女同志伴侶承諾維持具有顯著的正向影響；然而，外界壓力對於女同志 伴侶承諾維持的影響主要為間接效果，不直接影響親密關係的承諾維持，一旦個體的身 份認同提高，便可降低外界壓力對於伴侶關係經營的影響。

Commitment maintenance is a major key to long term same sex couple relationships. It is also an important indicator of the stability of couple relationships. The present study used snowballing method to distribute questionnaires through internet. The author aimed to explore how lesbians’ external pressure, family acceptance, and lesbian identity influence their commitment maintenance. Five hundred and eighteen valid questionnaires were collected. The results showed that lesbian identity are affected by external pressure and family acceptance, and they also have a positive effect on lesbian couple relationship commitment maintenance. Yet, external pressure has only indirect influence on their relationship commitment maintenance. It seems that once a lesbian has higher lesbian identity, there will be less influence from external pressure on their couple relationship.