Abstract: To evaluate the effect of epidural analgesia on the progress of delivery and fetal outcome on nulliparous labor and delivery this study was designed. One hundred primiparous women randomly divided into two equal groups to receive either epidural analgesia (case group n = 50) or no any intervention for delivery (control group n = 50). In the case group epidural analgesia was done in 4-5 cm dilatation of cervix. Labor progress, length of labor stages, fetal heart patterns, oxytocin administration and dosage was checked by residents for each patient. Mean of active phase length, first and second stage length, rate of fetal distress, cesarean section, instrumental delivery and low Apgar score (Lower than 7 in first and fifth minute) were compared. The mean and maximal rates of oxytocin infusion were similar between the two study groups. First and second stages of labor were a little lengthened in woman who had epidural analgesia but this difference was not significant statistically. There were no any significant differences between two groups regarding rate of fetal distress and cesarean section. We concluded epidural analgesia did not affect length of labor or cesarean rate and has no effect on perinatal outcome and can therefore be recommended to mothers as a satisfying and effective method of pain relief for labor.