Provided are an axial induction motor, a fan and a rotor thereof. The rotor of the axial induction motor comprises: a housing; a magnetic sealing member disposed on the housing; and a buffer comprising a first surface and a second surface, the first surface being abutted against the magnetic sealing member or the housing; and a permanent magnet abutting against the second surface of the damping member, the permanent magnet being abutted against the magnetic sealing magnet. The permanent magnet and the magnetic sealing member has a distance in the axial direction of the rotor. As a result, the axial induction motor, fan and rotor have better durability and running sound quality.