To provide a fluid enclosing type cylindrical mount capable of effectively exhibiting a vibration isolating effect by a fluid function of fluid against vibration in a plurality of frequency regions by allowing three orifice passages to selectively function with simple structure.

Three auxiliary liquid chambers 58, 59, 60, which are made to communicate with a main liquid chamber 56 through orifice passages 62, 63, 64 and are different in wall spring rigidity from each other, are apart from each other in a circumferential direction on a side opposite to a vibration input direction with respect to the main liquid chamber 56. The first orifice passage 62, which is connected to the first auxiliary liquid chamber 58 located at the center to be tuned onto a low frequency side, and the second orifice passage 63, which is connected to the second auxiliary liquid chamber 59 located on one side in the circumferential direction of the main liquid chamber 56 to be tuned onto a middle frequency range, are formed in a shape extending toward the same side in the circumferential direction from the main liquid chamber 56. Meanwhile, the third orifice passage 64, which is connected to the third auxiliary liquid chamber 60 located on the other side in the circumferential direction of the main liquid chamber 56 to be tuned onto a high frequency side, is formed in a shape extending toward a side opposite to the first and second orifice passages 62, 63 in the circumferential direction from the main liquid chamber 56.