Motor rotor and magnet sealing piece thereof

The utility model provides a motor rotor which comprises a magnet sealing piece, a rotating shaft and a hub, wherein the magnet sealing piece is provided with a first surface and a second surface opposite to each other, and an assembly hole penetrating through the first surface and the second surface; a fixedly connecting part is arranged at the periphery of the assembly hole and axially extends from the second surface to the first surface; a joint end is arranged on the rotating shaft, the joint end is combined with the assembly hole of the magnet sealing piece, and the fixedly connecting part of the magnet sealing piece is combined with the peripheral surface of the rotating shaft near the joint end; the hub is integrally combined with the magnet sealing piece and the rotating shaft; therefore, the bonded area of the magnet sealing piece and the rotating shaft can be increased effectively through the fixedly connecting part.