To provide a vibration isolation device to secure a vibration isolation function and excellent in a load withstanding property.

A rolling element 20 is made of a columnar roller on a vibration isolation device furnished with a vibration isolation device main body 1 provided between an upper part member 24 and a lower part member 16 and a plural number of the rolling elements 20 to make contact with at least a rolling surface 17a of one side of the upper part member 24 and the lower part member 16 free to roll and on which the upper part member 24 and the lower part member 16 are provided free to relatively move by rolling of the rolling elements 20.