This article is to discuss what a healthy marriage is from the viewpoint of divorce--unhealthy marriage. Its content contains five parts. (1) Introduction: including a general understanding of present divorce problems--the relationship between marriage and divorce, the divorce rate in Taiwan, divorce cases recorded in courts, the factors causing the growing of divorce rate, and the reasons of divorce. (2) The meanings and values of divorces: including the meanings of divorces, family pathology and correspondence, divorce pathology vs. families pathology, the influences and values of divorces. (3) Discussing the problems of family relationships and divorce case by case: including interpersonal relationships in original family and divorce, the stages of family development and divorce. (4) Sexuality and divorce: the cases are both from Japan and Taiwan. Japanese cases are contributed by Japanese social workers and family consultants, and by some divorce researches. Taiwan's cases are contributed by some documents on deep interviews with divorcees. Through these cases I hope to further understand every aspect of divorce. (5) Conclusion: Express personal opinions on a healthy marriage after making analyses and comparisons.