A vibration isolation structure comprising: a composite laminated member configured by alternating layers of a plurality of hard plates with rigid properties and a plurality of rubber plates with viscoelastic characteristics; a first flange member and a second flange member that are provided at stacking direction outer sides of the composite laminated member so as to hold the composite laminated member therebetween, and that respectively couple the composite laminated member to a vibration generating section and a vibration receiving section; and a stress reduction section that reduces hydrostatic stress from tensional load along the stacking direction of portions of the composite laminated member corresponding to a first end side and a second end side in a shear direction orthogonal to the stacking direction, to an amount that is lower than hydrostatic stress from tensional load along the stacking direction for other portions of the composite laminated member; wherein the composite laminated member is formed in a circular shape as viewed along the stacking direction; characterised in that: the stress reduction section comprises a configuration wherein the length from the first end side to the second end side of the hard plates is shorter than the length between edge portions at other locations of the hard plates; the hard plates being formed with a two face width profile of a circular shape from which the first end side and the second end side have been cut off; and the rubber plates are formed continuous in the stacking direction at the first end side and the second end side so as to infill the cut-off portions of the hard plates. a composite laminated member configured by alternating layers of a plurality of hard plates with rigid properties and a plurality of rubber plates with viscoelastic characteristics; a first flange member and a second flange member that are provided at stacking direction outer sides of the composite laminated member so as to hold the composite laminated member therebetween, and that respectively couple the composite laminated member to a vibration generating section and a vibration receiving section; and a stress reduction section that reduces hydrostatic stress from tensional load along the stacking direction of portions of the composite laminated member corresponding to a first end side and a second end side in a shear direction orthogonal to the stacking direction, to an amount that is lower than hydrostatic stress from tensional load along the stacking direction for other portions of the composite laminated member; wherein the composite laminated member is formed in a circular shape as viewed along the stacking direction; the stress reduction section comprises a configuration wherein the length from the first end side to the second end side of the hard plates is shorter than the length between edge portions at other locations of the hard plates; the hard plates being formed with a two face width profile of a circular shape from which the first end side and the second end side have been cut off; and the rubber plates are formed continuous in the stacking direction at the first end side and the second end side so as to infill the cut-off portions of the hard plates.