Background & objective: Different studies have been emphasized the effects of maternal position on labor and delivery these effects isn’t less important than medical and midwifery factors. This study is a quasi- experimental. This study wants to the effects of Maternal elective position during active phase on the process and outcome of Labor and delivery in primigravida women.

  Methods: The of the study were 150 women 75 women in case group (women in the elective Position) and 75 women in whom allowed to cuoie their labor control group in . All women were between 18-30 years, term pregnancy (hist and second s ??), interval of poin in second sreye of labor, the first and minu as scores, mother’s sansfa??? Of delivery experwones, onest of breasr feedy have recorded.

  Results: The results of the study showed that the elective and freedom of position significantly reduced length of active phase (p=0/002), need for oxytocin augumentation (p=0/0058), pain intensity (p=0/026), ceasarean section (p=0/0393) and increased APGAR score in the first minute (p<0/01), early onset of breast feeding (p=0/0015) and Mothers’ satisfaction of delivery experience (p=0/0001). Duration of second stage and fifth minute Apgar were not different in two groups.