On the basis of comprehensive domestic and foreign literature in related fields, combined with the National Institute of Child Health and Human Development, the American College of Obstetricians and Gynecologists, the American Society of Maternal-Fetal Medicine and other relevant guidelines and expert consensus, experts of the Obstetrics and Gynecology Section of the Chinese Medical Association reached the following consensus on the clinical management of the new stage of labor, in order to guide clinical practice. First stage of labor: latency: prolonged latency (primigravida > 20h, transplacental > 14h) is not an indication for cesarean section; after rupture of membranes and at least 12-18h of intravenous administration of oxytocin is given before diagnosis of failure of induction of labor; with the exception of cephalopelvic asymmetry and suspected fetal distress, slow but still progressive (including the assessment of dilatation of the uterine orifice and descending of the first dew) the first stage of labor is not an indication for cesarean section. Active phase: 150px dilatation of the uterine opening is used as an indication of active phase. Diagnostic criteria for active arrest: after rupture of membranes and dilatation of ≥150px, active arrest can be diagnosed if contractions are normal and dilatation of the uterus stops for ≥4h; if contractions are poor and dilatation of the uterus stops for ≥6h, active arrest can be diagnosed. Active arrest can be used as an indication for cesarean section. Second stage of labor: Diagnostic criteria for prolongation of the second stage of labor:1 for primiparous women, if the epidural block is performed, the second stage of labor is more than 4h, and there is no progression of labor (including fetal head descent, rotation) can be diagnosed as prolongation of the second stage of labor; if there is no epidural block, the second stage of labor is more than 3h, and there is no progression of labor can be diagnosed.2 for experienced women, if the epidural block is performed, the second stage of labor is more than 3h, and there is no progression of labor (including fetal head descent, rotation) can be diagnosed as prolongation of the second stage of labor. Prolonged second stage of labor can be diagnosed if the second stage of labor exceeds 3h without progress (including descent and rotation of the fetal head); if the second stage of labor exceeds 2h without progress without epidural block, the diagnosis can be made. Vaginal assisted labor by experienced physicians and midwives is safe, and training in vaginal assisted labor techniques is encouraged. When the fetal head is descending abnormally, fetal orientation should be assessed before considering vaginal assisted labor or cesarean section, and hand-turning of the fetal head to the proper fetal orientation should be performed if necessary. Clinicians should apply the above new concepts of labor management in a timely manner, and closely observe the progress of labor under the premise of maternal and child safety, in order to promote vaginal delivery, reduce the cesarean section rate, and maximize maternal safety. In view of the rapid development of clinical and basic research, the relevant contents of this consensus will be improved and revised in future extensive and in-depth clinical practice and research.