Objective To observe the effect of Sopfrology-Lamaze childbirth breathing training on the delivery quality and negative mood of pregnant women.Methods 218 pregnant women were sampled and randomly divided into study group(A group,n =122) and control group(B group,n =96).A group learned the method and technique of Sopfrology-Lamaze childbirth breathing.From 28th week pregnancy to delivery,the times of training was more than 3 per week,and lasted 20 minutes.The rate of cesarean delivery,rate of severe pain,the time of labor,the amount of bleeding after 2h labor,and the dosage of patient controlled analgesia were observed.The selfrating anxiety scale (SAS) and self-rating depression scale(SDS) were used to assess the mood of prengnat women in 28th week pregnancy,before and after labor.Results There were significant difference in rate of cesarean delivery(A group 7.4％,B group 17.7％,x2 =5.46,P ＜ 0.01),rate of severe pain (A group18.8％,B group 59.4％,x2 =37.9,P ＜ 0.05),amount of bleeding after 2h labor (A group (219.43-± 31.47) ml,B group (287.5 ± 37.83)ml,t =14.50,P ＜ 0.05),and the dosage of patient controlled analgesia (A group(13.25 ± 1.89)ml,B group (19.87 ±2.52)ml,t=21.43,P＜0.05) between A group and B group.The SAS and SDS scores were lower in A group (SAS:before labor(44.3 ±7.6),after labor(42.2 ±4.7) ;SDS:before labor(45.2 ±4.7),after labor(42.2 ± 5.1),P ＜ 0.05) than those in B group (SAS:before labor(48.5 ± 6.6),after labor(47.35 ±5.1) ; SDS:before labor(47.7 ± 5.3),after labor (46.6 ± 6.3),P ＜ 0.05).Conclusion Sopfrology-Lamaze childbirth breathing training can improve the delivery quality and negative moods of pregnant women