Since Metz had employed the impedance audiometry in clinical studies in 1946, scholars have carried out many investigation. Brooks, Jeger, Cooper reported and evaluated the clinical studies of impedance audiometry and its screening test. Recently, in Korea, studies of impedance audiometry have been reported. We analysed 100 children aged between 7-16 year old who visited O.P.D. of E.N.T. department with the complaints of the nasal obstruction and hard of hearing from Nov. 77-Feb. 79. With the use of otoscope and impedance audiometry, we evaluated the types of tympanogram, static compliance and the acoustic reflex. This paper is dealing with the statistical study of impedance audiometric result and its literature.