本研究旨在探討中年不婚女性在家中成員都已成婚的家庭形態下，對於原生家庭成員的依附關係是否隨家庭的變動而產生變化。研究結果發現，中年不婚女性對原生家庭依附關係的「對自我知覺意象」行為依附呈現：尋求個人獨立自由空間，認知於原生家庭成員間的位置，且力求經濟獨立，不造成家人的負擔，以及趨於保持距離並拒絕家人的干擾。在「對他人知覺意象」感情依附呈現：主動付出以維持手足之情，對已成家的手足仍維持原親屬關係，雖被視為家中成員，但行事仍須有分際，家中排行為長者，受手足尊敬，情感寄託於伴侶，與女性手足較為親密，經營與原生家庭成員的感情，遇到身體不適及環境危害時會想依賴家人。本研究提供理解中年不婚女性在原生家庭成員皆成婚的家庭形態下的處境，對於原生家庭成員的依附關係必須隨家庭的變動而自我調整。

This article discusses whether unmarried women's attachment with the family of origin changes after their siblings get married. According to the research, the behaviors of self-perception of the unmarried mid-age women's attachment with the family of origin includes looking for space for independence and freedom, recognizing their position in the family, striving for financial freedom, not becoming a burden to the family, and keeping a distance from the interference of the family. Their emotional attachments of perceptions toward others suggest that they strive to keep the relationship with the married siblings; being seen as a member of the family, but need to act within the boundary; if the birth rank is the first child in the family, they are respected by their siblings; emotionally attach to their partner; keep closer relationships with their female siblings; maintain the relationship with family members; attempt to rely on family members when feeling ill or stressed in their environment. This study provides an understanding of the situation of unmarried mid-age women's in the family structure where all members of the original family are married. The attachment relationship of the original family members must be self-adjusted with the changes of the family.