A laundry treatment apparatus comprising: a cabinet defining an appearance of the laundry treatment apparatus; a drum rotatably disposed in the cabinet to contain laundry; and a power unit comprising a shaft, which is rotatably provided for rotating the drum, wherein the power unit comprises: a rotating magnetic field generator securely provided in the cabinet to generate rotating magnetic fields; an input magnetic gear part rotatably disposed radially outside the rotating magnetic field generator and including at least one permanent magnet to transfer rotating magnetic fields; a magnetic path formation part disposed radially outside the input magnetic gear; and an output magnetic gear part disposed radially outside the magnetic path formation part, including at least one permanent magnet therein, and configured to rotate with the shaft to rotate the shaft, wherein the laundry treatment apparatus comprises a first bearing to support a radial load generated by rotation of the shaft and a second bearing for withstanding radial load generated by rotation of the input magnetic gear; wherein the input magnetic gear part comprises: a first rotor disposed radially outside the rotating magnetic field generator; and an input magnetic gear disposed radially outside the first rotor, and a magnetic gap defined between the first rotor and the input magnetic gear, wherein the surface of the first rotor which faces the rotating magnetic field generator, is provided with a plurality of magnets, and the outer radial surface of the input magnetic gear is provided with permanent magnets, wherein the numbers of magnetic poles of the input magnetic gear and the first rotor correspond to each other, wherein the magnetic gap being made of a highly permeable material, and wherein the first rotor, the magnetic gap and the input magnetic gear are configured to rotate together. a cabinet defining an appearance of the laundry treatment apparatus; a drum rotatably disposed in the cabinet to contain laundry; and a power unit comprising a shaft, which is rotatably provided for rotating the drum, wherein the power unit comprises: a rotating magnetic field generator securely provided in the cabinet to generate rotating magnetic fields; an input magnetic gear part rotatably disposed radially outside the rotating magnetic field generator and including at least one permanent magnet to transfer rotating magnetic fields; a magnetic path formation part disposed radially outside the input magnetic gear; and an output magnetic gear part disposed radially outside the magnetic path formation part, including at least one permanent magnet therein, and configured to rotate with the shaft to rotate the shaft, a rotating magnetic field generator securely provided in the cabinet to generate rotating magnetic fields; an input magnetic gear part rotatably disposed radially outside the rotating magnetic field generator and including at least one permanent magnet to transfer rotating magnetic fields; a magnetic path formation part disposed radially outside the input magnetic gear; and an output magnetic gear part disposed radially outside the magnetic path formation part, including at least one permanent magnet therein, and configured to rotate with the shaft to rotate the shaft, wherein the laundry treatment apparatus comprises a first bearing to support a radial load generated by rotation of the shaft and a second bearing for withstanding radial load generated by rotation of the input magnetic gear; wherein the input magnetic gear part comprises: a first rotor disposed radially outside the rotating magnetic field generator; and an input magnetic gear disposed radially outside the first rotor, and a magnetic gap defined between the first rotor and the input magnetic gear, a first rotor disposed radially outside the rotating magnetic field generator; and an input magnetic gear disposed radially outside the first rotor, and a magnetic gap defined between the first rotor and the input magnetic gear, wherein the surface of the first rotor which faces the rotating magnetic field generator, is provided with a plurality of magnets, and the outer radial surface of the input magnetic gear is provided with permanent magnets, wherein the numbers of magnetic poles of the input magnetic gear and the first rotor correspond to each other, wherein the magnetic gap being made of a highly permeable material, and wherein the first rotor, the magnetic gap and the input magnetic gear are configured to rotate together.