The utility model discloses a magnetic levitation flywheel energy accumulation system, which has the advantages of small deadweight, large electricity storage, low manufacturing cost, mobile usage, free adjustment of the real-time discharge quantity value to the outside, and quick charge or large real-time discharge; wherein, the axial component of ''the high-vacuum enclosed housing'' is made of materials of low specific gravity. No permanent magnetic material components are positioned on the ''Flywheel'' and the ''Wheel Disk'' is divided into three rings. Four ''Permanent Magnetic Rotating Motor Devices'' are arranged. The ''Magnet bearing'' is ''all magnetic levitation bearing'' or ''semimagnetic levitation bearing''. The utility model is also provided with a device to guarantee the reliability of the mobile usage of the ''Magnet Bearing''.