The invention discloses a double-side output permanent magnet servo motor comprising two groups of stators and a rotor. The two groups of stators comprise a front stator and a rear stator. The rotor comprises a rotating shaft and a turntable. The turntable is fixed to the rotating shaft. The front stator and the rear stator sandwich the turntable. An even number of permanent magnets are evenly embedded in the turntable. The end poles of the permanent magnets face the surface of the turntable. The end poles of the adjacent permanent magnets on the same surface are different. The weight and thesize of the double-side output permanent magnet servo motor are reduced under the same power, thereby satisfying requirements for small installation space and large power output. The double-side output permanent magnet servo motor has a wide application range and a good market application value.