목적: Although, we previously reported the feasibility of various robot-assisted head and neck (HN) surgeries, sometimes there were some mechanical limitations. Here, novel robotic surgical system (Da Vinci Xi®, Intuitive Surgical, Inc. Sunnyvale, CA), introduced to our institution in late 2014 for the first time in Korea, was evaluated as a mean to perform robot-assisted supraomohyoid neck dissection (SOND) via retroauricular (RA) approach based on our previous experience with robotic neck dissection. 방법:Eight patients who underwent elective robot-assisted SOND of the ipsilateral neck for biopsy proven cN0 oral cavity squamous cell carcinoma from January 2015 to August 2015 were analyzed. The patient’s position, making working space, docking, and surgical technique were nearly the same as previous report, whereas, all four instruments were placed through RA port in contrast to previous robotic system setting. 결과:The surgeries were successful in all patients with no serious intraoperative complications. The new system provided easier reach to target anatomy and wider range of motion without collision between arms. Moreover, surgeon could proceed the entire surgery using three robotic arms (Maryland Bipolar forceps, Fenestrated Bipolar forceps, and Spatula Monopolar forceps) with minimal assistance of assistant surgeon. 결론:The Da Vinci Xi® surgical system is more optimized for the robot-assisted neck dissection than previous one. It can be expected to be a next frontier for robotic surgery in HN oncologic surgery.