We applied eleetrocoehleography (ECochG) test to 37 persons. 14 of 1hem were normal and 23 of them were the patients with cochlear paihology who have applied to the Royal National Throat, Nose, Ear Hospital Neuro - Otology and Electrophysiology department of London University Medical School. The results were obtained by ECochG tests have shown that this test is applicable easily and rather trustify than the subjective behavioral audiometrie test for the diagnosis of cochlear pathology.