As the industrial civilization develops, humankind can expect to receive the convenience and richness. But the various by-product which it leaves as the pollution threatens the natural environment. Especially, noise and vibration of these pollutions are causative of the mental instability and hard of hearing. In addition, they cause the performance degradation of the precision instrument and the early rising fatigue fracture of parts of precision instrument from the industry side. So recently interest in the damping technology and damping alloy is increasing. Therefore, in order to grasp the advanced technology of the damping alloy, we analyzed global techniques and patents information in this paper.