To make it possible to receive heavy load as well as reducing leakage of an energy absorbing body with respect to a vibrational energy absorbing apparatus used for e.g., a quake-absorbing device and quake-resistant device of a building.

A vibrational energy absorbing apparatus is provided which incorporates an entering and leaving rod 2 inside a tubular cylinder 1 coaxially and in an axially and relatively movable manner, houses the energy absorbor 3 made from an elastically deformable metal to be arranged around the entering and leaving rod 2 inside the cylinder 1, has a resistant portion 2c on a peripheral surface of the entering and leaving rod 2 causes the energy absorbor, to absorb the vibrational energy by an elastic deformation by the relative movement between the energy absorbor 3 and the resistant portion 2c at the time of absorbing the vibrational energy. As the energy absorbor 3, a metal with a yield point of 9.0 N/mm2 or more and 50.0 N/mm2 or less is employed and an antifriction material is interposed between the energy absorbor 3 and the entering and leaving rod 2.