Objective: To compare the incidence of surgical site infection after appendectomy wound irrigation with regular saline solution and imipenem solution. Study Design: Comparative randomized control trial Place and Duration of Study: Department of Surgery Unit-1, Sandeman Provincial Hospital Quetta from 1st September 2020 to 30th April 2021. Methodology: Eighty patients of both genders were presented in this study. Patients detailed demographics age, sex and body mass index were recorded after taking informed written consent. Patients underwent for appendectomy wound irrigation were included. Patients were equally divided into two equal groups, I and II. Group I had 40 patients and received imipenem and group II irrigated with saline solution with 40 patients. Outcomes were surgical site infection, deep abscess formation was observed post-operatively. Results: The mean age of the patients in group I was 26.11±2.03 years with mean BMI 23.61±3.32 kg/m2 and in group II mean age was 25.14±3.12 years with mean BMI 22.14±4.88 kg/m2. In group I, 32 (80%) patients had inflamed appendix, perforated appendix was in 7 (17.5%) and gangrenous appendix in 1 (2.5%) while in group II inflamed appendix in 34 (85%), perforated appendix in 4 (10%) and gangrenous appendix 2 (5%). Surgical site infection in group I was 3 (7.5%) and abscess formation in 2 (5%) cases while in group II SSI in 6 (15%) and abscess formation in 3 (7.5%) cases. Conclusion: Imipenem irrigation after appendectomy reduces wound infection. Healthcare costs and patient suffering due to infection can be reduced. Keywords: Imipenem solution, Wound irrigation with saline, Appendectomy wound infection