Abstract: Objective To investigate the effect of ultrasonic scalpel and suture hemostasis on ovarian function,hemodynamics and complications in patients with laparoscopic ovarian cystectomy.Methods A total of 98 patients with unilateral ovarian benign tumor by treatment of laparoscopic ovarian cystectomy were selected and divided into ultrasound group (n =40) and suture hemostasis group (n =58) according to the different methods of hemostasis.All patients were followed up for 6 months.The changes of ovarian function,hemodynamic changes and complications were observed in both groups.Results Patients in both groups successfully completed surgery.There were no significant differences in serum follicle stimulating hormone (FSH),luteinizing hormone (LH) and estradiol (E2) before surgery and 6 months after treatment between two groups (P ＞ 0.05).In the ultrasonic scalpel group,the cardiac output (CO),stroke volume (SV) and mean arterial pressure (MAP) were significantly higher than those before operation and suture hemostasis group (P ＜ 0.05).There was no significant difference of incidence rate of complications in both groups (P ＞ 0.05).Conclusion Both ultrasonic scalpel and suture hemostasis can effectively protect ovarian function in patients with laparoscopic ovarian cystectomy.