A vibration isolation device which dampens vibration of an object. The device includes a vibration isolation unit that can be activated in a plurality of vibration isolation modes, an acquisition unit that acquires estimate information associated with vibration of a floor, in which the acquisition unit receives data associated with an influence degree of seismic vibration and an influence time zone of the seismic vibration from an external device, and a control unit that selects a vibration isolation mode from the plurality of vibration isolation modes, in accordance with the estimate information acquired by the acquisition unit, and activates the vibration isolation unit in the selected vibration isolation mode. The control unit switches between the vibration isolation modes of the vibration isolation unit in accordance with the influence degree and the influence time zone.