The objective of this study is to induce the importance of manners through the relation between the implementation of manners and strengths of family life in adolescents and to examine positive variants that can enhance healthy family life. A total of 312 questionnaires were used as the final data for this study. The results of the study are as follows. 1. The implementation of manners in adolescents was just above the median. In particular, the lowest sector was in public manners requiring intensive activation measures. The variables influencing the results were sex, self-esteem, level of intimacy with mothers, and relative comparisons. Especially, the level of intimacy with mothers was the most influential indicating the importance of the roles of mothers in manners education. 2. Adolescents seem to be leading a comparatively healthy family life. In the subcategories, bonding among family members appeared to be the most prominent. Nonetheless, little time is spent together among family members. Moreover, psychological variants were very influential in the strengths of family life in adolescents. Considering that implementation of manners contributed to enhancing the strengths of family life, the establishment of a healthy manners culture of adolescents in required.