A vibration-damping device comprising: a tubular first attachment member coupled to any one of a vibration generating part and a vibration receiving part, and a second attachment member coupled to the other thereof; an elastic body that couples the first attachment member and the second attachment member together; and a partitioning member that partitions a liquid chamber within the first attachment member having a liquid enclosed therein into a main liquid chamber having the elastic body as a portion of a wall surface thereof, and an auxiliary liquid chamber, wherein a limiting passage that allows the main liquid chamber and the auxiliary liquid chamber to communicate with each other is formed in the partitioning member, wherein an inner peripheral surface of the limiting passage is provided with a flow changing protrusion (31, 33, 34, 36, 41, 42, 43, 44) that protrudes toward an inner side in a radial direction of the limiting passage and that changes the flow of a liquid that flows into the limiting passage from the main liquid chamber and flows through the limiting passage in an axial direction of the limiting passage, wherein, in a vertical cross-sectional view passing through an axis of the limiting passage and through the flow changing protrusion (31, 33, 34, 36, 41, 42, 43, 44), the limiting passage and the flow changing protrusion (31, 33, 34, 36, 41, 42, 43, 44) have symmetrical shapes with respect to the axis, and wherein a protruding end of the flow changing protrusion (31, 33, 34, 36, 41, 42, 43, 44) forms an inner peripheral edge of a passage hole (31c, 33c, 34c, 36c, 41c, 42c, 43c, 44c) that is open on both sides in the axial direction, characterized in that the flow changing protrusion (31, 33, 34, 36, 41, 42, 43, 44) is formed integrally with the partitioning member as a rigid body having rigidity such that the flow changing protrusion (31, 33, 34, 36, 41, 42, 43, 44) is not deformed when the flow of the liquid is received by the flow changing protrusion (31, 33, 34, 36, 41, 42, 43, 44), and the limiting passage is provided with a circumferential groove part, and in that the circumferential groove part extends in a circumferential direction in an outer peripheral surface of the partitioning member. a tubular first attachment member coupled to any one of a vibration generating part and a vibration receiving part, and a second attachment member coupled to the other thereof; an elastic body that couples the first attachment member and the second attachment member together; and a partitioning member that partitions a liquid chamber within the first attachment member having a liquid enclosed therein into a main liquid chamber having the elastic body as a portion of a wall surface thereof, and an auxiliary liquid chamber, wherein a limiting passage that allows the main liquid chamber and the auxiliary liquid chamber to communicate with each other is formed in the partitioning member, wherein an inner peripheral surface of the limiting passage is provided with a flow changing protrusion (31, 33, 34, 36, 41, 42, 43, 44) that protrudes toward an inner side in a radial direction of the limiting passage and that changes the flow of a liquid that flows into the limiting passage from the main liquid chamber and flows through the limiting passage in an axial direction of the limiting passage, wherein, in a vertical cross-sectional view passing through an axis of the limiting passage and through the flow changing protrusion (31, 33, 34, 36, 41, 42, 43, 44), the limiting passage and the flow changing protrusion (31, 33, 34, 36, 41, 42, 43, 44) have symmetrical shapes with respect to the axis, and wherein a protruding end of the flow changing protrusion (31, 33, 34, 36, 41, 42, 43, 44) forms an inner peripheral edge of a passage hole (31c, 33c, 34c, 36c, 41c, 42c, 43c, 44c) that is open on both sides in the axial direction, characterized in that the flow changing protrusion (31, 33, 34, 36, 41, 42, 43, 44) is formed integrally with the partitioning member as a rigid body having rigidity such that the flow changing protrusion (31, 33, 34, 36, 41, 42, 43, 44) is not deformed when the flow of the liquid is received by the flow changing protrusion (31, 33, 34, 36, 41, 42, 43, 44), and the limiting passage is provided with a circumferential groove part, and in that the circumferential groove part extends in a circumferential direction in an outer peripheral surface of the partitioning member.