The multi-objective optimization algorithm based on the target area is used to improve the ability to prevent misalignment of the laminated coupler in wireless charging systems. Firstly, the wireless charging system with S-S compensation and the principle of the stacked magnetic coupling are analyzed. Secondly, the principle of the multi-objective optimization algorithm based on the target area is analyzed and used to optimize the parameters of the stacked magnetic coupling structure. Finally, simulation experiments verified the feasibility of the proposed method.