The smooth or not of labor directly affect the outcome of the pregnancy.The application of the new labor has gradually be?come popular since the new labor put forward in 2014.The new labor give women more opportunity to have a trial birth,which greatly improved the rate of vaginal delivery.However,some defects have also been exposed in the process of its clinical generalization.Thisarticle summarized the effects of new labor on the progression of labor duration,complications and labor analgesia of vaginal delivery.