A partitioning member (16) of a vibration-damping device (10) is provided with a communication chamber (30), a first communication hole (31) and a second communication hole (32). The first communication hole (31) and the second communication hole (32) are arranged to be offset from each other in the axial direction (O). The first communication hole (31) is formed by the inside of a first protruding tube (31a) that protrudes into the communication chamber (30) from the first wall surface (30a). The second communication hole (32) is formed by the inside of the second protruding tube (32a) that protrudes into the communication chamber (30) from the second wall surface (30b). By including the configuration as described above, simplification of structure can be achieved.