This study is to observe the effects of nursing care according to change of position for comfort during labor and safe delivery of newborn infants and parturient women, Fifty antcpartal primipara with labor pain who were admitted to the delivery soom of H University Medical Center from September 1, 1976 to November 15, 1976 (Estimate Delivery Confinement) were selected for this investigation. Among the 50 parturiencys, the experimental group (28 primipara) were placed in 30 degree upright sitting position and the control group (22 primipara) were placed in the supine position. Following placement, both groups were observed, The summarized findings of the study were as follows; 1. There was a noticeably significant difference in the duration of the first stage of labor (defined as 4 cm. dilatation of the cervical os with the fetal presenting part engaged to full or 10 cm. dilatation), between the two groups. For women in the 30 degree upright sitting position, the first stage of labor was close to 33.66 minutes shorter than for the women in the supine position, (t = 32.79, D-F = 48,p<0.05) 2. Although slight differences were observed between the Apgar Scores of the newborn Infants of primipara in the two groups, these were not significant. The mean Apgar Score among the newborn infants of primipara in the 30 degree upright sitting position was 9.64 compared with 9.04 for the newborn infants of primipara in the supine position, a difference of 0.6. (chi-square = 2.44, D-F = 2, p>0.05) /. There was a sign, ficant difference in the comfortability of the parturient women between the two groups because the shortened duration of the first stage and the high level of comfort core calculated for six factors (body activity, serving bed pan, serving kidney basin, pushing, deep breathing and parturient women's feelings), that affect nursing care.