The invention discloses a permanent magnet polarization three-degree-of-freedom magnetic bearing. A rotor iron core comprises an axial part and a radial part. A stator comprises a right iron core bridge, a left iron core bridge, a right annular permanent magnet, a left annular permanent magnet, a right axial control iron core and a left axial control iron core. A radial control iron core is arranged between the left annular permanent magnet and the right permanent magnet, and a radial control winding is wound on stator teeth of the radial control iron core. A right magnetism distributing aluminum ring is arranged between the right axial control iron core and the radial control iron core, and a left magnetism distributing aluminum ring is arranged between the left axial control iron core and the radial control iron core. The right axial control iron core and the left axial control iron core are both of an E-shaped structure, and axial control windings are wound in stator grooves respectively. The permanent magnet polarization three-degree-of-freedom magnetic bearing effectively overcomes the defects of an existing three-degree-of-freedom magnetic bearing, and a low power consumption three-degree-of-freedom magnetic bearing structure easy to control, manufacture and assemble, capable of ensuring that axial and radial control magnetic flow does not pass through the permanent magnets and generating larger axial and radial suspension force is provided.