The fast design of the stator and rotor of the complex synchronous reluctance motor (SynRM) with multi-layer magnetic barrier is studied. Taking a 3 kW, 4-pole motor as an example, the performance of the SynRM with different winding forms is compared. In order to reduce the torque ripple, a simplified model of the typical C-type magnetic barrier rotor is proposed. The influences of various parameters on the motor output torque and torque ripple are studied, and the parameters of the magnetic barrier are further optimized with the help of multi-objective optimization algorithm, which provides a reference for the design and analysis of similar motors.