From Jan, 1983 to Dec, 1984, authors have operated 48 cases of laryngeal and hypopharyngeal cancer at the department of otolaryngology in Seoul National University Hospital and those cases were clinically analyzed concerning the anatomic site of cancer, preop and postop TNM staging of the diseases, days of hemovac and Levine tube in place, postoperative days of admission, postoperative complications and recurrence rates and following results were obtained. 1) Classification of anatomic site : glottic 15(31%), supraglottic 13(27%), subglottic 2(4%), transglottic 12(25%), hypopharyngeal 6(13%). 2) Modes of surgical treatment : total laryngectomy 17, Total Laryngectomy with radial neck dissection 25, total laryngectomy with bilateral fuctional neck dissection 4, pharyngolaryngectomy with radical neck dissection and esophageal reconstruction with pectoralis major myocutaneous flap 2. 3) Differences between preop and postop TNM staging. 14 cases of underestimated T, 3 cases of overestimated T, 7 cases of underestimatted N and 4 cases of overestimated N were revealed by examination of surgical specimens. 4) Postoperative complications : esophagocutaneous fistula 16(33%), swallowing difficulty 9(19%), tracheal stomal stenosis 6(13%), wound problem 4(8%). 5) Hemovac was removed on the 5.8th postoperative day. Levine tube was removed on the 14th postoperative day without complication and the 44th day with complication. 6) Recurrences or distant metastasis : tracheal stomal recurrences 4(8%), cervical lymph node metastasis 2(4%), local recurrences 1(2%), distant metastasis 3(6%), cervical vertebra 1, lung 2.