A pet carrier may include a main body and a protective layer. The protective layer is resilient and one side of the protective layer has a transition layer that can be attached to a surface of the protective layer by a glue. The protective layer is then sewed to the main body. One end of the main body has a first buckle unit, and a second buckle unit is disposed on an adjustable ring body passing through the other end of the main body. A connecting rod is disposed at a center portion of the adjustable ring body to secure the other end of the main body on the connecting rod.
