A five-freedom active control magnetic suspension free rock system is mainly composed of a magnetic suspension stator system and a magnetic suspension rotor system. The magnetic suspension stator system is mainly composed of a support rod front segment, a support rod back segment, a cover plate, a rotary encoder, a shaft coupling, an electromagnetic clutch component, a tightening bolt, a fixed thread ring, a small self-locking thread ring, a large self-locking thread ring, an axial magnetic bearing stator, a radial magnetic bearing stator, an axial displacement sensor and a radial displacement sensor; and the magnetic suspension rotor system is mainly composed of a locating joint, a principal axis, a protecting bearing, a radial magnetic bearing rotor, an axial magnetic bearing rotor, an axial sensor detecting ring and a radial sensor detecting ring. The invention adopts a magnetic suspension support mode and greatly reduces the mechanical friction, leads to that the plane model can better analog the real aero flight of the plane and the precision of plane wind tunnel test is greatly increased.