Abstract: A 12/22 magnetic field modulated outer-rotor flux-switching permanent magnet（OR-FSPM） machine was analyzed based on the magnetic field modulation principle. The winding configuration was determined by analyzing the harmonic components in the airgap. In addition, considering the influence of the temperature on PM materials, an electrical-thermal bi-directional coupling method was proposed, which can realize exchanging data. By deducing the Bi-H curves of the PM at different temperature, the corresponding B-H curves in whole temperature range were fitted and derived. Based on the obtained PM B-H curves, the electrical-thermal bi-directional coupling analysis was conducted. Then, according to the obtained performances, a feedback design was implemented on key parameters adjustment to improve the real performance, which took the influence of the temperature into consideration. Finally, a prototype machine was manufactured, and the theoretical analysis and studied results verified the effectiveness of the proposed method.