Abstract: Active-phase arrest defined as 1 cm or less of cervical change over 2 h in the active-phase of labor. The aim of this study was determine the effects of atropine for induction of labor in arrest of labor. In a clinical trial study, we evaluated 120 nullipar, singleton and term delivery with anterior cephalic presentation and arrest of dilatation in Al-Zahra hospital since 2004-2005. Patients divided to four group`s randomizly. Group A as a control group don’t received any induction methods, group B and D received atropine with dose 0.01 mg kg 1 intravenously. Group C and D received Oxytocin with dose 0.01 mg kg 1 intravenously. The mean time period from labor induction to full dilatation and vaginal delivery was 220.29 � 77.22, 165.48 � 56.53,203.33 � 70.11 and 149.23 � 45.18 min in groups A, B, C and D, respectively (p<0.001). Cesarean section rate was 6.66, 3.33, 10 and 13.33% in group A, B, C and D, respectively. Atropine at the same of the Oxytocin was affective in treatment for arrested labor but vaginal delivery duration in control group was significantly larger than the other groups. Cesarean section rate in atropine group was lower than other groups. Using atropine plus Oxytocin for induction of labor don’t recommend.