This study aims to explore the experience and acceptance of cohabitation among young adults and to examine the relationship between the experience and acceptance of cohabitation and marriage intention. Using online survey data of 446 young adults aged 25 to 39 living in metropolitan cities, we conducted descriptive analysis, logistic regression, OLS regression, and multinomial logistic
regression. The results show that one out of ten young adults have been in cohabiting living situations. This study measured cohabitation attitudes by asking how strongly the respondents would agree on three types of cohabitation. We found that acceptance as a marriage process was ranked the highest followed by cohabitation as marriage alternative and acceptance of partner’s previous cohabitation. The cohabitation experience and attitudes were related to gender, age, and child-related values. Cohabitation experience was not associated with marriage intention but cohabitation attitudes were significantly associated with marriage intention of young adults.