To explore the effect of delivery supported by a labor doula combined with music therapy on stabilizing maternal psychology and improving delivery quality, and to find out the predictors of delivery self-efficacy. Statistical processing showed that P<0.05, which was statistically significant. Group was superior in numerical value, followed by the B group. Using the rank sum test, the pain grade of the experimental group was significantly lower than that of the control group, and the difference was statistically significant (P<0.05). T test or χ2 test showed that the total labor time of the experimental group was shorter than that of the control group. Vaginal delivery rate was higher than that of the control group, and the cesarean section rate was lower than that of the control group, and the difference was statistically significant (P<0.05). Conclusion: Doula delivery combined with music therapy is effective in parturient delivery, which can alleviate parturient pain, speed up labor progress and improve delivery quality, and is worthy of popularization and application. At the same time, increasing pregnant women’s understanding of delivery strategies and techniques and improving their psychological state will help improve the level of delivery self-efficacy of pregnant women.