The divorce rate is rapidly getting higher in Taiwan Area recently. This forms a great shock in Taiwan Area where marriage generally kept stable all the time. The new situation brings a certain degree of pressure and even panic to the married couples, and makes unmarried people feeling unreliable of marriage. People do not. know how to adjust to the new situation. As one indicator of rapid social change, the higher and higher divorce rates becomes one of currently significant social problems. This study is to know the degree of the stability of first marriage among married women of childbearing age in Taiwan Area. The data used here is from “A Survey of Ptactice of Induced Abortion Among Married Women in Taiwan Area.”The survey collected more than twelve thousand cases’ data. The data about age of first marriage, premarried pregnancy, and way of decision-making in marriage, which are unavailable in governmental fact-books, &.re analysed here to know their relationships with marriage continuation and the proportion of remarriage. In our analysis, the proportions of marriage disintegration of subgroups were weighted according to number of years after first marriage, which is related to the degree of danger in marriage disintegration, to get ‘standardized proportions’as our basic measure. Chi-square test is used to find whether there are statistically significant differences. As a result, we found that the first marriage is more dangerous for those who got pregnant before engagement or before marriage without engagement, who got married younger than twenty, who got married very late, and who made decision about marriage by themselves. On the contrary, the first marriage tends to be more stable for those who got pregnant firstly after marriage or after engagement, who got married between twenty and twenty-nine, and who made decision about their marriage jointly with parents.