Interior Permanent Magnet Synchronous Motor(IPMSM) is widely used in many industrial applications and household electrical appliances because of its higher efficiency, higher torque density, and wide speed range. In recent years, there has been an increasing interest about motor design technologies that satisfies required specifications in industrial applications. Therefore, it is important to shorten the design period and generalize the method. The period is shorten by using coarse mesh Finite Element Method in this paper. This paper shows usefulness of Genetic Algorithm(GA) coupled with course mesh Finite Element Method for higher torque IPMSM structure.