A liquid-sealed type vibration-damping device, comprising: a tubular first attachment member connected to one of a vibration occurrence part and a vibration reception part, and a second attachment member connected to the other; an elastic body which elastically connects both attachment members (11, 12); and a partition member which partitions a liquid chamber in the first attachment member in which liquid is sealed into a first liquid chamber and a second liquid chamber, a restriction passage through which the first liquid chamber and the second liquid chamber communicate with each other being formed in the partition member, wherein the restriction passage includes a first communicating portion which is formed on a first barrier facing the first liquid chamber and opens to the first liquid chamber, a second communicating portion which is formed on a second barrier facing the second liquid chamber and opens to the second liquid chamber, and a main body flow passage through which the first communicating portion and the second communicating portion communicate with each other, at least one of the first communicating portion and the second communicating portion includes a plurality of fine holes which penetrate through the first barrier or the second barrier and are disposed in a flow passage direction of the main body flow passage, characterised in that when a projected area of a fine hole is a projected area oriented in a direction in which a fine hole center line passing through the center of the smallest cross section of the fine hole extends to the surface located in the primary liquid chamber or the auxiliary liquid chamber in the first barrier or the second barrier, then a proportion that the projected area or an opening area of a smallest cross section of the plurality of fine holes occupies, per a predetermined area of the first barrier or the second barrier, gradually decreases as it separates from the other of the first communicating portion and the second communicating portion in the flow passage direction. a tubular first attachment member connected to one of a vibration occurrence part and a vibration reception part, and a second attachment member connected to the other; an elastic body which elastically connects both attachment members (11, 12); and a partition member which partitions a liquid chamber in the first attachment member in which liquid is sealed into a first liquid chamber and a second liquid chamber, a restriction passage through which the first liquid chamber and the second liquid chamber communicate with each other being formed in the partition member, wherein the restriction passage includes a first communicating portion which is formed on a first barrier facing the first liquid chamber and opens to the first liquid chamber, a second communicating portion which is formed on a second barrier facing the second liquid chamber and opens to the second liquid chamber, and a main body flow passage through which the first communicating portion and the second communicating portion communicate with each other, at least one of the first communicating portion and the second communicating portion includes a plurality of fine holes which penetrate through the first barrier or the second barrier and are disposed in a flow passage direction of the main body flow passage, characterised in that when a projected area of a fine hole is a projected area oriented in a direction in which a fine hole center line passing through the center of the smallest cross section of the fine hole extends to the surface located in the primary liquid chamber or the auxiliary liquid chamber in the first barrier or the second barrier, then a proportion that the projected area or an opening area of a smallest cross section of the plurality of fine holes occupies, per a predetermined area of the first barrier or the second barrier, gradually decreases as it separates from the other of the first communicating portion and the second communicating portion in the flow passage direction.