Objective?To explore the effect of laparoscopy and laparotomy surgery on immune function related indicators in ovarian benign tumor patients.?Methods?From January 2015 to January 2016, 86 cases of ovarian benign tumor patients were set as study objects. All the patients were randomly divided into control group and observation group, 43 cases in each. Patients in control group were given traditional laparotomy surgery, while patients in observation group were given laparoscopic surgery. The changes of immune function related indexes before and after operation were recorded, before operation, day 1 and day 3 postoperative, number of peripheral white blood cells (WBC), neutrophil ratio (NGR), immunoglobulin (IgA, IgG, IgM) levels, C reactive protein (CRP) content and the distribution of T lymphocyte subsets (CD3+, CD4+ and CD3+/CD4+ ratio) distribution were respectively determined, and the incidence of postoperative complications was recorded, and were further statistical analyzed.?Results?There was no significant difference in immunoglobulin IgA, IgG and IgM between the two groups before operation (P > 0.05). Postoperative, only the IgG content of the two groups was significantly lower than that before the operation (P < 0.05 ); The levels of WBC, NGR and CRP in the control group patients in the first day and the third day after surgery were significantly increased compared with preoperative period, while CRP in the observation group was higher than that before the operation, there was significant difference between the two groups (P < 0.05). There was no significant difference in CD3+, CD4+ and CD3+/CD4+ ratios between the two groups before operation (P > 0.05), the difference between the two groups was significant (P < 0.05). The complication rate of the observation group after operation was 6.98%, the control group was 16.28%.?Conclusion?Clinical use of laparoscopic treatment of benign ovarian tumors relative to the traditional laparotomy can effectively reduce the immune system of patients with immune function, with high safety, contribute to the recovery of patients, it is worthy of clinical promoting.