Aiming at the problem that the output current of the wireless power transfer system was changed due to the easy migration of coupling mechanism, a dual topology wireless power transfer system with anti-migration characteristics was studied. In this paper, the output characteristics of SS and LCC-LCC topological circuits were analyzed firstly, and DDQ coil structure was selected to realize the decoupling between coils. Then, the parameters of compensation network were optimized based on particle swarm optimization algorithm to make it have better anti-migration characteristics. Finally, the system circuit was built in PSIM simulation software to verify the feasibility of theoretical analysis.The simulation results showed that the offset range of the system coupling mechanism was 0 mm~160 mm, the output current fluctuation range was 8.52 A~9.36 A, the output current fluctuation ratio was ±4.7%, and the system efficiency was up to 91.47%.