Objective To explore the effect of modified Park method double eyelid surgery on wound healing and double eyelid morphological indicators in patients undergoing double eyelid correction. Methods A total of 104 patients who received double eyelid surgery in the Aesthetic Surgery Clinic of Fuping Yunxiangrong Medical Cosmetology Co., Ltd. from January to December 2024 were selected, and they were divided into the control group and the experimental group according to different surgical methods, with 52 patients in each group. The control group was treated with traditional incision double eyelid surgery, and the experimental group was treated with modified Park method double eyelid surgery. The clinical related indicators, wound healing, double eyelid morphological indicators, palpebral fissure changes and aesthetic satisfaction were compared between the two groups. Results The suture removal time and postoperative recovery time of the experimental group were shorter than those of the control group (P <0.05). The scores of swelling and ecchymosis in the experimental group at 1, 3 and 7 days after operation were lower than those in the control group (P <0.05). The scores of double eyelid line shape, double eyelid improvement and left-right eye symmetry in the experimental group at 30 and 90 days after operation were higher than those in the control group (P <0.05). The palpebral fissure length, palpebral fissure inclination and palpebral fissure angle of the experimental group at 90 days after operation were better than those of the control group (P <0.05). The satisfaction scores of double eyelid line shape, palpebral fissure appearance, left-right symmetry and total satisfaction score in the experimental group were higher than those in the control group (P <0.05). Conclusion Modified Park method double eyelid surgery can promote postoperative incision healing, reduce the severity of early swelling and ecchymosis, improve the shape and symmetry of double eyelid line, synergistically optimize palpebral fissure appearance, and enhance aesthetic satisfaction, which is worthy of clinical application.