桃園觀音地區作為客家與閩南族群高度混居的交會帶,長期的跨族群通婚使得傳統清晰的族群邊界在日常生活中逐漸變得模糊與流動。過往族群關係研究多聚焦於宏觀公共場域的資源分配或政治對抗,相對忽略了私領域的微觀互動。基於此缺口,本研究將視角拉回家庭私領域的「餐桌」,探討客閩通婚子女如何在日常的飲食實踐與味覺記憶中,協商父母兩方族群邊界,並建構自身的多重身分認同。 本研究採取質性研究取徑,透過深度訪談法,立意抽樣10位桃園觀音地區之客閩通婚成年子女,並將其嚴謹地對照分為「父客母閩(A組)」與「父閩母客(B組)」兩大群體。理論框架上,本研究揉合了Bourdieu的「飲食慣習」、Assmann的「文化記憶」以及Barth的「族群邊界」等理論,建構出「味覺—記憶—邊界」的分析框架,剖析通婚家庭餐桌上的微型權力運作。 研究發現可分為三個層次:第一,通婚家庭的飲食絕非自然而然的融合,而是在傳統父系宗族結構、母系掌廚權力與現代勞動參與的交錯影響下,發展出高度差異化的微觀政治。第二,同一菜餚的語碼轉換,以及普魯斯特式感官記憶,成為通婚子女跨越語言使用習慣、連結長輩生命史與轉譯文化根源的核心機制。第三,通婚子女並非游移在兩種文化間的邊緣人,多數子女能主動運用味覺的中介性,在流動的情境中大方擁抱「一半一半」的複合式認同,創造出專屬於他們的文化主體性。 總結而言,本研究證實了微觀的飲食實踐正是族群邊界不斷被再生產與重新協商的最前線。透過「味覺的交織處」,本研究不僅深化了飲食社會學中關於傳承與身體感的論述,更為理解臺灣在地族群融合與跨族群子女的主體性,提供了具備生命史厚度的實證經驗。;Taoyuan′s Guanyin District possesses a complex history of Hakka and Minnan ethnic coexistence and intermarriage. This study focuses on the adult children of these intermarriages, utilizing the family dining table as a micro-analytical field to explore how they negotiate ethnic boundaries and construct cultural memory and identity through everyday dietary practices. Employing qualitative research methods, this study conducted semi-structured in-depth interviews and participant observation with 10 adult children from Hakka-Minnan intermarried families. The participants were divided into two comparative groups: those with a Hakka father and Minnan mother, and those with a Minnan father and Hakka mother. The findings reveal three key dimensions. First, family food habitus reflects a spectrum of power negotiations, ranging from patriarchal assimilation to cultural hybridity and innovation. Second, sensory experiences of taste and smell act as profound carriers of cultural memory, anchoring ethnic roots and emotional attachments across generations. Finally, the identity construction of these children oscillates between rigid patriarchal bloodline anchorage and fluid, composite self-identification. Ultimately, through the "intersection of tastes," these individuals deconstruct single-ethnicity essentialism to forge a unique, complete, and hybrid local cultural subjectivity.