One of the problems of surgery in the neck is the scar. The rapid development of laparoscopic surgery in the 1990s led to the development of endoscopic techniques for surgery of the neck. With recent advancement of instruments such as electric endoscopy, ultrashears, and small endoscopic dissecting devices, cervical scarless endoscopic thyroidectomy is rapidly becoming a common approach in many institutions. Multiple endoscopic approaches for thyroid surgery have been developed, ranging from gasless, video-assisted approach to a complete endoscopic approaches such as cervical, axillary, axillo-bilateral breast and anterior chest approach. Although each method has its own advantages and disadvantages, all methods are technically feasible, safer, and cosmetically more excellent compared to conventional thyroidectomy. Operative time can be shortened according to the accumulation of surgeon's experience. Indication has been widened from small benign tumors to larger tumors and papillary microcarcinoma. Further studies for comparative evaluation of several methods and applying these methods to the malignant thyroid tumors are needed.