This paper takes the 8/4 pole two-phase switched reluctance motor as the research object, uses micro-arc oxidation ceramic electromagnetic wire to form the motor winding, and increases the winding current density by improving the high temperature resistance of the motor, so as to achieve the purpose of increasing the power density. On the basis of the original motor, the structure of the motor is optimized by using Taguchi algorithm, which reduces the product of the electric body and further improves the power density. The working principle, basic structure and parameters of 8/4 pole two-phase switched reluctance motor are introduced, and the optimization process of Taguchi algorithm is described. Finally, the optimization results are verified and analyzed by simulation. Simulation results indicate that the motor's high-temperature resistance has improved, its volume has been reduced by 36%, and its power density has nearly doubled. Additionally, other performance aspects of the motor have also seen enhancements, proving the effectiveness of the proposed solution.