Adenoid cystic carcinoma is a rare primary tracheal tumor, and this tumor behave slow growth, low grade malignancy with local invasion. Although many patient die within 2 to 3 years of the onset of symptoms without appropriate treatment, adequate therapy should lead to survival of 10 years or more. We had a case of adenoid cystic carcinoma in 47 year old female patient who was treated with resection and end-to-end anastomosis of the invaded trachea. Postoperative course was uneventful and discharged without any complications. Radiotherapy of total 6,600 cGy is scheduled 4 weeks after the resective surgery to prevent recurrence.