PURPOSE: To obtain the energy confinement type vibrating device which can securely confine vibration generated by a vibration device to the device regardless of the kind of the vibration source, prevents the vibration from being diffused to the outside, and selectively attenuates vibration of specific frequency and in specific vibration mode.

CONSTITUTION: The device is equipped with the vibration source 1a, a vibration transmission part 1b which is coupled with the vibration source 1a and receives the vibration from the vibration source 1a, and resonance parts 1c and 1d which are coupled with the vibration transmission part 1b and receive the vibration from the vibration source 1a; and the resonance parts 1c and 1d are made different in resonance frequency and/or vibration mode.