During the last two decades, microlaryngeal surgery opened a new era in the laryngeal surgery. In 1960, using Lynch's suspension laryngoscope, Scalco et al performed the first successful microsurgery in the treatment of polyps and other laryngeal diseases. In 1968, O. Kleinsasser reported a new technique of microlaryngeal surgery with self retaining laryngoscope. Author made a statistic analysis of 62 cases (86 times) of the suspension laryngoscopic microsurgery in E.N.T. department of Hanyang University Hospital from May 1972 to September 1979 and obtained this result ; 1) Sex distributions were male 1.6 : female 1. 2) Age distributions were 19 cases (30.7%) in 3rd decade, 11 cases (17.7%) in 2nd decade and 10 cases (16.1%) in 5th decade in order. 3) Chief complaints were hoarseness, 57 cases (92%), dyspnea, 17 cases (27.4%) and sore throat, 9 cases (14.5%) in order. 4) Diagnostic impressions were polyp 24 cases (38.7%), nodule 13 cases (21%), papilloma 11 cases (17.7%), tumor 8 cases (12.9%), intubation granuloma 3 cases (4.8%) in order and other kinds were epiglottic cyst, laryngeal stenosis with decannulation difficulty and laryngeal paralysis. 5) Histopathologic results of 57 cases were polyp 20 cases (35.1%), papilloma 14 cases (24.6%), nodule 10 cases (17.6%), malignancy 4 cases (7.0%), chronic inflammation 2 cases (3.5%) mucous retension cyst 2 cases (3.5%). Others hyperkeratosis, nodule associated with abscess, granuloma, hematoma and unconfirmed case. 6) Involved sites were as follows; both cord 18 cases (60%), Lt. cord 6 cases (20%), Rt. cord 3 cases (10%), involvement to anterior commissure 3 cases (10%) on 30 cases of polyp and nodule and whole laryngeal involvement 11 cases (79.6%), only cordal involvement 2 cases (14.3%), extralaryngeal involvement 1 case (7.1%) on 14 cases of the papilloma.