The object of this study is an examination of source of robot noise and reduction of the noise and the vibration for an industrial
robot system. As the first step in our study, the noise and the vibration from the robot are measured by microphones and by
accelerometers and the source of the noise and the vibration are proved to be from the gear, shaft, and housing from the experiments.
The occurrence of the noise may be classified according into kinds, Finally base on the result of the experiments, we consider a
countermeasure for reducing the noise and the vibration of robot system by the parametric study.