In this paper, improved model of the LSM (Linear Synchronous Motor) for high-speed magnetic levitation train was designed to improve the performance and save material costs. Characteristics of the basic model was analyzed by the finite element method, and based on this information the design parameters of the improved model was chosen. The mover yoke width, stator yoke width, slot opening are the design parameters and was analyzed by the finite element method. Further discussion is made in the direction of the design in order to improve the performance and suppliment the fault between the basic and improved model, by comparing the characteristics.