Background: labor is the physiological process by which the fetus is expelled from the uterus to the outside world. It is defined as increase in myometrial activity or more precisely, a switch in the myometrial contractility pattern from contractures (long-lasting, low-frequency activity) to contractions (frequent, high intensity, high frequency activity), resulting in effacement and dilatation of the uterine cervix. Aim of the Work: this study aimed to compare between 2D and 3D ultrasound cervicometry and digital assessment of the cervix before induction of labor. Patients and Methods: this study was carried out at Obstetrics and Gynecology Departments of Al-Hussien University Hospital and Al-Agoza Police Hospital from July 2016 to January 2018 on one hundred (100) women; their ages ranged from 18 to 35 years and the gestational ages ranged from 37-42 weeks. All patients had medical indications for labor induction. Results: there were highly statistically significant relations (HS) between mode of delivery and cervical length, bishop score and posterior cervical angle as pvalue (0.001).It was found that the more obtuse the angle, the higher the probability of vaginal delivery and the reverse for the cervical length. This means that Bishop Score and cervical length and posterior cervical angle had the same dependency in predicting successful labor induction.  Conclusion: in this study we found that the successful induction correlated significantly with transvaginal ultrasonographic measurments of the posterior cervical angle and cervical length and Bishop Score. But, Bishop Score appeared to be specific and accurate than the ultrasonographic measurements in prediction of successful vaginal delivery. Recommendations: further studies on large number of participant with the same indication of induction and the same gestational age are recommended to assess Bishop Score and transvaginal ultrasonographic measurements and to evaluate each of them as predictors of successful labor induction.