To certainly support a body to be vibrated on a vibrating source by a relatively simple constitution without deforming a vibration damping member.

The vibration insulation device is provided with a bobbin-like supporting member 2 which has flange parts 2a on both sides of a trunk body 3 and which has a hole penetrating through the trunk part 3 and flange parts 2a, a vibration damping member 4 while loaded on the periphery of the trunk part between the flange parts of the supporting member 2 and which has a groove part 6 over the full length of the outer peripheral part, a body 7 to be vibrated, which has an about U-shaped cutout where the cutout part 8 of the body 7 to be vibrated, is inserted into the groove part 6 of the vibration damping member 4 loaded in the supporting member 2, the supporting member 2 is fastened to the vibrating source 1 by means of the fastening member 9, utilizing the hole of the supporting member 2.