The vibration isolation device (10) includes a first mounting member (11) connected to one of a vibration generating portion and a vibration receiving portion, and a second mounting member (12) connected to the other thereof; and an elastic body (13) disposed between the mounting members. On either one of opposing surfaces (24, 25) that oppose each other, respectively on the first mounting member (11) and the second mounting member (12), a stopper elastic body (27) having a stopper surface (26) which faces the other of the opposing surfaces (24, 25) such as to be capable of coming into contact therewith, and a hollow portion (30) in which the stopper elastic body (27) is disposed, are provided. The stopper elastic body (27) is fitted into the hollow portion (30) such that, among the surfaces of the stopper elastic body (27), a counter-stopper surface (34) which faces the direction opposed to the stopper surface (26), is in a state of non-contact.