PURPOSE: The purpose of this study was to identify whether the maternal-fetal attachment is related to choose the rooming-in of postpartum women. METHOD: This is a retrospective descriptive study. The data was collected from April 1 to May 31, 2001. Subjects who had NSVD were 68 mothers who opted the rooming-in and 98 mothers who did not choose the rooming-in at one hospital in Seoul, Korea. The research questionnaire consisted of 14 items on general characteristics, and 24 items on maternal fetal attachment developed by Cranley(1981). RESULT: 1. There was significant statistical difference in general characteristics between rooming-in and non rooming-in groups in prenatal class attendance, and husband attendance during the delivery. 2. There was significantly higher level of maternal fetal attachment score in the rooming-in group. 3. There was higher level of maternal fetal attachment score in the group which had participated in childbirth education than the group which didn't had participated. CONCLUSION: It could be concluded that the maternal fetal attachment is identified as a significant factor choosing the rooming in for postpartum women. Therefore it is needed to increase maternal fetal attachment of pregnant women before making decision for whether they choose the rooming-in or non-rooming in after delivery.