目標：本研究旨在探討家庭接納對同性戀及雙性戀者生理及心理健康之影響。方法：透過問卷調查法蒐集620份有效樣本，包括300份同性戀樣本、125份雙性戀樣本及195份異性戀樣本資料。本研究以多變項變異數分析檢驗研究對象自評的生理健康、心理困擾及自殺意念是否因性傾向而存在差異，並以廣義線性模型分析家庭接納對個體生理健康、心理困擾及自殺意念的影響是否因性傾向而有不同。結果：統計分析結果顯示同性戀及雙性戀者之心理困擾及自殺意念均顯著高於異性戀者。不論性傾向為何，家庭接納和身心健康以及自殺意念皆有顯著的相關。此外，家人的接納對同性戀及雙性戀者心理困擾的影響程度顯著高於家庭接納對異性戀者心理困擾的影響。結論：相關機構應針對同性戀及雙性戀者之心理健康需求提供服務，並致力於促進家人對同性戀及雙性戀者之接納，以提升同性戀及雙性戀者之心理健康。

Objectives: This study investigated the effects of family acceptance on the physical and mental health of LGB adults. Methods: Valid questionnaires were collected from 620 research participants, including 300 lesbians and gays, 125 bisexuals and 195 heterosexuals. The data were analyzed by MANOVA to examine the differences in the self-rated physical health, mental health and suicide ideation among lesbians and gays, bisexuals and heterosexuals. The data were also analyzed by a generalized linear model to examine the difference in the effects of family acceptance on the physical health, mental health and suicide ideation among lesbians and gays, bisexuals and heterosexuals. Results: LGB adults scored significantly higher than heterosexuals did on the scales on mental health symptoms and suicide ideation. Family acceptance was significantly correlated with physical health, mental health, and suicide ideation, regardless of the participants’ sexual orientation. Family acceptance had a more significantly effect on LGB’s mental health than on that of the heterosexual participants. Conclusions: Related agencies should develop specific mental health services for LGB adults and make efforts to increase family members’ acceptance of LGB adults in order to promote their mental health.