Bearingless switched reluctance motor (BSRM) has been widely used in industry due to its high fault tolerance, low loss and high efficiency, but the vibration during motor operation can affect its application in certain fields. Taking BSRM as the research object, a method of opening the window at the stator-rotor teeth is introduced. By changing the reluctance of stator or rotor core, the magnetic flux density in the air gap can be reduced, to achieve the purpose of reducing electromagnetic vibration. The position and size of windows are optimized by electromagnetic finite element method and orthogonal experimental method. Verify the impact of rotor window opening on radial force and torque of the external stator. Finally, the influence of rotor window opening on vibration response is verified by modal superposition method. The results show that the proposed method has a good suppression effect on the electromagnetic vibration of hybrid excitation double-stator BSRM , but has a certain influence on the torque of the motor.