本研究旨在探討婚前性行為及婚姻態度對婚姻不穩定的影響，婚姻態度分為認知層面的婚姻的評價及婚姻的快樂程度和意向層面的婚姻長久維繫的意向。本研究使用次級資料庫的數據進行分析，針對全臺灣20歲至65歲已婚男性和已婚女性為對象，共有859位。研究發現如下：
一、現況
（一）婚前性行為情形：已婚男女51.1%有婚前性行為，其中男性、年齡越輕、教育程度越高、無宗教信仰者婚前性行為比例高。
（二）婚姻態度情形：已婚男女婚姻的評價普遍較低、婚姻的快樂程度普遍較高。性別上，婚姻的評價及婚姻的快樂程度已婚男性皆較為已婚女性正向。年齡與婚姻的評價及婚姻的快樂程度皆有正相關，而年齡與婚姻長久維繫的意向呈現負相關。教育程度與婚姻的評價有負相關，而教育程度與婚姻長久維繫的意向有正相關。宗教信仰上，信奉佛教者其婚姻的評價顯著較無宗教信仰者來得正向。
（三）婚姻不穩定情形：已婚男女20.5%婚姻不穩定，其中女性婚姻不穩定比例較高，年齡、教育程度及宗教信仰對婚姻不穩定沒有影響。
二、婚姻態度分析
（一）婚前性行為負向影響已婚女性婚姻態度認知層面的婚姻的評價及婚姻的快樂程度
（二）婚前性行為對已婚男性婚姻態度皆無影響
三、婚姻不穩定分析
（一）已婚女性婚姻不穩定受婚前性行為影響
（二）已婚男性婚姻不穩定受婚姻態度認知層面的婚姻的評價及婚姻的快樂程度影響

關鍵字：婚姻不穩定、婚前性行為、婚姻態度、已婚男女

This study aims to explore the influence of premarital sexual behavior and attitudes toward marriage upon marital instability. There are two dimensions in marriage attitudes: cognition and intention. Cognition includes marriage valuation and the degree of marital happiness. Intention includes the intention to maintain a lasting marriage. Data from the secondary database had been used in this study in analyzing 859 Taiwanese married men and women aging between 20 and 65. The results of this study are as following.
1.Analysis of Current Status
(1)Premarital sexual behavior: 51.1% of married men and women have premarital sex experiences, among which male, the young, the highly educated and the non-religious are to higher proportion.
(2)Attitudes toward marriage: In general, married men and women have lower marriage valuation but have higher degree of marital happiness. In gender, marriage valuation and the degree of marital happiness of married men are higher than that of married women’s. In age, it shows a positive correlation with marriage valuation and the degree of marital happiness while the intention to maintain a lasting marriage says otherwise. Negative correlation was found between the degree of education and the marriage valuation, on the other hand, it is positively related to the intention to maintain a lasting marriage. In terms of religion, Buddhists have a significantly more positive valuation of marriage than those who are non-religious.
(3)Marital instability: 20.5% of married men and women are facing marital instability. While female has a higher proportion of marital instability, other factors such as age, education degree and religion have no visible effect.
2.Analysis of Attitudes toward Marriage
(1)Premarital sexual behavior results in married women’s negative attitudes toward marriage in marriage valuation and the degree of marital happiness.
(2)No association was found between premarital sexual behavior and all three dimensions of married men’s attitudes toward marriage.
3.Analysis of Marital Instability
(1)Married women's marital instability is affected by premarital sexual behavior.
(2)Married men's marital instability is affected by attitudes towards marriage including marriage valuation and the degree of marital happiness.

Keywords: marital instability, premarital sexual behaviors, attitudes toward marriage, married men and women

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