Objective : To evaluate normative data of VOR using rotary chair. Background : A new chair concept generating dynamic stimuli by alternating rotations in the horizontal plane of the chair’s seat was recently developed. Methods : All cases was subjected to SHA. Material: 50 normal subjects (25 male & 25 female) ranging in age from 5 years to more than 60 years old and was tested using rotary chair. Results : For normal subjects the mean gain is 0.5 (SD = 0.15), the mean phase is 7.7 (SD = 5) and asymmetry is -1.05 (SD = 1.7). Conclusion : The tested frequency of rotation affects VOR gain, phase and asymmetry.