The invention discloses a variable frequency motor for a refrigerator. The variable frequency motor comprises a shell, a main shaft, a circuit board, a stator seat, a stator, a magnetic ring, a rotorshell, an elastic washer, a bakelite gasket and a bearing seat, wherein the circuit board, the stator seat, the stator, the magnetic ring, the rotor shell, the elastic washer, the bakelite gasket andthe bearing seat are arranged in the shell, the stator seat comprises a cylinder body and a bottom plate seat, the stator comprises an iron core and a three-phase winding coil, the three-phase windingcoil is arranged on the outer side surface of the cylinder body through the iron core, and the magnetic ring is arranged in the rotor shell and is sleeved on the periphery of the stator. According tothe invention, the variable-frequency motor for the refrigerator adopts a low-voltage direct-current power supply to drive the motor to rotate, so that stepless speed regulation control is realized;and the motor adopts an outer rotor structure, the rotor inertia of the outer rotor structure is large, the power density is high, and the heat dissipation is good, so that the motor is more energy-saving. The invention further discloses a fan adopting the variable frequency motor for the refrigerator, wherein a plurality of flow guide grooves are formed in the windward sides of fan blades, so that noise can be effectively lowered, and the resistance of fan starting to the fan blades of the fan is reduced so as to effectively reduce the load of the motor and improve the wind speed under the same power.