Abstract: A bearing structure includes a bearing that supports a propeller shaft, an annular vibration isolating member fitted over the bearing, an outer ring attached to the vibration isolating member and having an outer-peripheral fitting surface, and a bracket attached to a vehicle body and having an inner-peripheral fitting surface that is fitted to the outer-peripheral fitting surface. Both the bracket and the outer ring are formed of an aluminum material. An anodized aluminum layer is formed on at least one of the inner-peripheral fitting surface and the outer-peripheral fitting surface. Because of the above mentioned features, the bearing structure that has a light weight and is inexpensive and productive.