Abstract: A vibration isolating apparatus includes: a first mounting member; a second mounting member; an elastic body provided between the first mounting member and the second mounting member; a main fluid chamber, the elastic body forming a portion of a partitioning wall of the main fluid chamber such that the main fluid chamber can expand and contract; a first auxiliary fluid chamber disposed so as to be separated from the main fluid chamber; a first restricting passage communicating the main fluid chamber and the first auxiliary fluid chamber; a second auxiliary fluid chamber disposed so as to be separated from the main fluid chamber; a second restricting passage communicating the main fluid chamber and the second auxiliary fluid chamber; a first diaphragm forming a portion of a partitioning wall of the first auxiliary fluid chamber; a second diaphragm forming a portion of a partitioning wall of the second auxiliary fluid chamber; an air chamber disposed in opposition to the second auxiliary fluid chamber with the