Objective To investigate the efficacy of auricular acupressure combined with drugs in parturient woman with postpartum hemorrhage after secondary cesarean section. Methods A total of 75 parturient women with postpartum hemorrhage after secondary cesarean section,selected from January 2015 to April 2017,were randomly divided into 3 groups. Control group was given intrauterine injection of oxytocin 20 IU and intravenous infusion of oxytocin 20 IU, as well as sublingual carboprost 1 mg; combined group was given intrauterine injection of hemabate 250 μg on the basis of control group; auricular group was treated with comprehensive therapy (auricular point sticking on the basis of combined group). Postpartum 2 h, 24 h bleeding, postpartum 1 d, 3 d, 5 d height of fundus of uterus were recorded, and the initial time of lactation and postpartum 48 h lactation amount scores were observed. Results Postpartum 2 h, 24 h bleeding in combined group (152.3 ± 31.1 ml, 326.7 ± 80.2 ml) and auricular group (144.7 ± 35.6 ml, 266.5 ± 62.3 ml) were significantly less than those in control group (240.4 ± 52.5 ml, 374.9 ± 74.6 ml, P 0.05), and the postpartum 24 h hemorrhage in auricular group were significantly less than the combined group (P<0.05). Postpartum 1 d, 3 d, 5 d height of fundus of uterus in combined group (12.6 ± 1.5 cm, 10.8 ± 1.6 cm, 9.5 ± 1.8 cm) and auricular group (11.4 ± 1.7 cm, 9.5 ± 1.3 cm, 8.4 ± 1.5 cm) were significantly lower than those in control group (13.7 ± 1.9 cm, 11.7 ± 1.6 cm, 10.5 ± 1.4 cm, P<0.05), which in auricular group were significantly lower than those in combined group (P<0.05). The initial time of lactation in combined group (30.44 ± 3.64) h, and auricular group (26.36 ± 3.95) h were significantly less than those in control group (34.84 ± 6.02) h, (P<0.05), which in auricular group were significantly less than in combined group (P<0.05); the postpartum 48 h lactation amount scores in combined group (1.84 ± 0.75) and auricular group (2.12 ± 0.74) were significantly higher than those in control group (1.36 ± 0.81), (P<0.05), which in auricular group were significantly higher than those in combined group (P<0.05). Conclusions Comprehensive therapy could reduce postpartum hemorrhage, promote uterine involution and improve postpartum lactation in parturient woman with postpartum hemorrhage after secondary cesarean section. Key words: Cesarean section, repeat; Postpartum hemorrhage; Lactation; Auricular point sticking, semen vaccariae; Clinical study