Objective: To explore the safety and aesthetic effect of modified Z-shaped cosmetic incision in parotid benign tumor resection. Methods: A prospective study was conducted. A total of 44 patients with benign parotid tumor resection were randomly divided into experimental group（ n =22） and control group（ n =22）. The experimental group underwent modified Z-shaped cosmetic incision, while the control group underwent the traditional S-shaped incision. The surgical duration, hospital stay, complications and maxillofacial aesthetics were compared between the two groups. Results: There was no significant difference in gender, age, surgical method, pathological type between the experimental group and the control group（ P >0.05）. The maxillofacial aesthetics and surgical duration of the two groups was statistically significant（ P <0.05）, while there was no statistically significant difference in terms of hospitalization days, surgical complications and Vancouver scar scale score （ P >0.05）. Conclusion: The modified Z-shaped cosmetic incision has a better effect on improving the maxillofacial aesthetics after benign parotid tumor resection, and compared with the traditional S-shaped incision, the safety is consistent, so it is worthy of clinical promotion and application.