本文透過「2020年臺灣社會變遷基本調查」分析離婚態度、政黨傾向和統獨立場等因素，如何影響民眾對於同性婚姻的態度。結果顯示，認為離婚沒有錯、支持泛綠、支持臺灣獨立的民眾有更高的比率支持同婚。本文進一步探討影響同婚態度的作用機制，發現統獨立場對同性婚姻議題的影響，高度依賴政黨政治的實踐；無政黨傾向維持現狀者的同婚態度，與反對同性婚姻的群眾更為接近，而傳統家庭價值觀在其中發揮的作用，也透露他們「抗拒改變」的政治偏好。同性婚姻的例子，凸顯臺灣民眾如何在政黨政治下的文化分歧中，形成對於制度變革的想像與回應。

This study analyzes how factors such as attitudes toward divorce, political party affiliation, and stance on Taiwan’s independence influence Taiwanese people’s views on same-sex marriage, based on the “2020 Taiwan Social Change Survey.” The results show that those who view divorce as acceptable, support pan-green parties, and favor Taiwan’s independence, are more likely to support same-sex marriages. The mechanisms through which these factors shape opinions are explored, finding that national identity heavily relies on party politics. Moreover, individuals without party affiliations who prefer the status quo tend to oppose same-sex marriages, reflecting resistance to change driven by traditional family values. This analysis highlights the cultural divide within Taiwanese society regarding major issues.