This study identified cluster type according to parents'' marital relationship, parent-child relationship, and adult attachment perceived by unmarried men and women. For this purpose, a questionnaire was collected from 380 unmarried men and women living in Daegu and Gyeongbuk. Correlation analysis, two-stage cluster analysis, analysis of variance (ANOVA) and a posteriori test were carried out using SPSS 25.0.
Four clusters were suggested that is characterized by the levels of parents'' marital relationship, parent-child relationship, and adult attachment : ‘stable family relationship-stable attachment type’ (Cluster 1), ‘unstable family relationship-Insecure attachment type’ (Cluster 2), ‘unstable family relationship-attachment anxiety type’ (Cluster 3), and ‘stable family relationship-attachment avoidance type’ (Cluster 4).
Significant differences among clusters were found in levels of marriage intentions by carrying out of analysis of variance(ANOVA). ‘stable family relationship-stable attachment type’ (Cluster 1) showed the highest scores in emotional marriage intention and marriage intention. In addition, ‘unstable family relationship-attachment anxiety type’ (Cluster 3) showed the highest score in functional marriage intention, and ‘stable family relationship-attachment avoidance type’ (Cluster 4) showed the highest score in normative marriage intention.
The results from the posteriori test indicate that ‘unstable family relationship-Insecure attachment type’ (Cluster 2) is lower than Cluster 1 and 3 on marriage intention and functional marriage intention. Clusters 2 is lower than Cluster 1 in terms of emotional marriage intention. In other words, when unmarried men and women are experiencing unstable family relationships and unstable adult attachment, their intention to marry is significantly lower.
In this study, parents'' marital relations, parent-child relations, and adult attachment can be meaningful in that they discover a new group of unmarried men and women. By providing the basic data on which appropriate interventions are made for each group of unmarried men and women, it is expected that they will be able to help unmarried women who are facing marriage, which is an important issue in life, to make a healthy choice and lead a happy life.

Key words : marriage intentions, parents'' marital relationship, parent-child relationship, and adult attachment, cluster analysis, unmarried men and women