〔Abstract〕 Objective To observe the effect of prenatal Kegel exercise on reducing laceration in parturient women. Methods From January 2021 to April 2023, 64 parturients who delivered successfully through natural delivery in Zhengzhou Maternal and Child Health Care Hospital were selected, 32 parturients with routine prenatal laceration prevention measures were selected to be included in a control group, and 32 parturients with Kegel exercise on the basis of routine measures were selected to be included in an observation group. The indexes of perineal injury, such as lateral incision rate, perineal laceration degree and clinical indexes were compared between the two groups. Results The perineal lateral resection rate in the observation group was lower than that in the control group, and the perineal integrity rate was higher than that in the control group, the differences were statistically significant (P < 0.05). The degree of perineal laceration in the observation group was less than that in the control group, and the difference was statistically significant (Z = -2.431, P < 0.05). The perineal suturing time, perineal bleeding amount and postpartum activity time in the observation group were less than those in the control group, and the differences were statistically significant (P < 0.05). The visual analogue scales (VAS) scores at 12 h, 24 h, 48 h and 72 h in the observation group were lower than those in the control group, and the differences were statistically significant (P < 0.05). The degree of perineal swelling 72 h after delivery in the observation group was less than that in the control group, and the difference was statistically significant (Z = -2.304, P < 0.05). The healing degree of perineum in the observation group was better than that in the control group, and the difference was statistically significant (Z = -2.318, P < 0.05). Conclusion Prenatal Kegel exercise can reduce the incidence and severity of laceration in vaginal delivery.