목적: The aim of our study is to evaluate electrophysiollogically the auditory nerve and auditory brainstem function of the normal hearing individuals with tinnitus and without tinnitus using auditory brainstem response (ABR). 방법:Twenty three normal hearing individuals with tinnitus (study group) and 20 without tinnitus (control group) were participated in this study. The control group was matched with similar sex and age with study group. We compare the ABR parameters (latency of waves l, lll, V interpeak intervals l-lll, lll-V, l-V the interaural latency difference of wave V amplitude of wave V) between two groups. 결과:The tinnitus group showed the prolongation of latencies of waves l, lll, V interpeak interval of l-lll, l-V, amplitude of wave V compared with the control group, although parameters in study group and control group were in normal limit. The prolongation of latency of wave lll and amplitude of wave V were statistically significant. 결론:In our study, the ABR results from the patients with and without tinnitus and normal hearing were within normal limits, but the tinnitus group showed the prolongation on large number of parameters of ABR. In this study, we think ABR is useful test for workup of tinnitus with normal hearing. However, the effect of problems for more peripheral and central pathways in tinnitus should be further studied to identify the pathophysiology of the tinnitus.