Objective To observe the effect of neuromuscular electrical stimulation (NMES) on body shape recovery in patients with postpartum diastasis recti abdominis. Methods A total of 200 patients with postpartum diastasis recti abdominis who visited the Department of Cosmetic Surgery, Fuling ZHOU Yesong Medical Beauty Clinic from March to September 2025 were selected, and they were divided into the control group and the experimental group by the random number table method, with 100 patients in each group. The control group performed physical exercise, and the experimental group received NMES on the basis of the control group. The diastasis recti abdominis distance, body shape recovery effect, lumbodorsal pain intensity and satisfaction were compared between the two groups. Results The diastasis recti abdominis distance of the experimental group after treatment was smaller than that of the control group (P<0.05). The waist circumference, waist-hip ratio, upper umbilical circumference and lower umbilical circumference of the experimental group after treatment were smaller than those of the control group, and the hip circumference was larger than that of the control group (P<0.05). The VAS score of the experimental group after treatment was lower than that of the control group (P<0.05). The satisfaction of the experimental group was higher than that of the control group (P<0.05). Conclusion By simultaneously stimulating the abdominal and hip muscles, NMES can not only effectively improve the diastasis recti abdominis distance of patients with postpartum diastasis recti abdominis, but also optimize the shape of the waist and hips, achieving the comprehensive body shape recovery effect of ffrming the waist and abdomen, shaping and lifting the buttocks. At the same time, it helps to relax local muscles, relieve lumbodorsal pain symptoms, and has high patient satisfaction, which is worthy of clinical application.