An anti-vibration device, which is an engine mount, comprising: a first attachment member configured to be connected to one of a vibration generating portion and a vibration receiving portion; a second attachment member configured to be connected to an other one of the vibration generating portion and the vibration receiving portion; and an elastic body located between the first attachment member and the second attachment member and having an upper end surface, wherein the first attachment member includes an upper partition wall and a lower partition wall arranged with a spacing in an up-down direction, a space that is open in a direction intersecting the up-down direction is formed between the upper partition wall and the lower partition wall, and the second attachment member and the elastic body are located in the space, the lower partition wall of the first attachment member has a first recess that is a downward recess and in which a lower end portion of the elastic body is housed, the second attachment member has a second recess that is an upward recess and in which an upper end portion of the elastic body is housed, a concavity portion forming a space with the elastic body is formed in the second recess, and the elastic body is a block body, characterised in that: the upper end surface of the elastic body is a flat end surface without a notch, the concavity portion is shaped by a dome-shaped curved surface recessed upward, the elastic body has at least one through hole extending in a longitudinal direction or a transverse direction of the anti-vibration device, and the longitudinal direction of the anti-vibration device corresponds to a front-back direction of the vehicle when mounted on a vehicle, and the transverse direction of the anti-vibration device corresponds to a right-left direction of the vehicle when mounted on the vehicle. a first attachment member configured to be connected to one of a vibration generating portion and a vibration receiving portion; a second attachment member configured to be connected to an other one of the vibration generating portion and the vibration receiving portion; and an elastic body located between the first attachment member and the second attachment member and having an upper end surface, wherein the first attachment member includes an upper partition wall and a lower partition wall arranged with a spacing in an up-down direction, a space that is open in a direction intersecting the up-down direction is formed between the upper partition wall and the lower partition wall, and the second attachment member and the elastic body are located in the space, the lower partition wall of the first attachment member has a first recess that is a downward recess and in which a lower end portion of the elastic body is housed, the second attachment member has a second recess that is an upward recess and in which an upper end portion of the elastic body is housed, a concavity portion forming a space with the elastic body is formed in the second recess, and the elastic body is a block body, characterised in that: the upper end surface of the elastic body is a flat end surface without a notch, the concavity portion is shaped by a dome-shaped curved surface recessed upward, the elastic body has at least one through hole extending in a longitudinal direction or a transverse direction of the anti-vibration device, and the longitudinal direction of the anti-vibration device corresponds to a front-back direction of the vehicle when mounted on a vehicle, and the transverse direction of the anti-vibration device corresponds to a right-left direction of the vehicle when mounted on the vehicle. the upper end surface of the elastic body is a flat end surface without a notch, the concavity portion is shaped by a dome-shaped curved surface recessed upward, the elastic body has at least one through hole extending in a longitudinal direction or a transverse direction of the anti-vibration device, and the longitudinal direction of the anti-vibration device corresponds to a front-back direction of the vehicle when mounted on a vehicle, and the transverse direction of the anti-vibration device corresponds to a right-left direction of the vehicle when mounted on the vehicle.