Electric Vehicle Wireless Power Transfer (EV-WPT) technology has great application prospects. However, during the process of vehicle parking, various factors may cause misalignment or angle deviation of the coupling mechanism, thereby reducing the charging power, efficiency, and even charging failure of the system. To address the above issues, this article designs a new type of coupling mechanism that achieves omnidirectional anti offset capability of the coupling mechanism; At the same time, the design method of using stray spacing increases the mutual inductance between energy coils, reduces the self inductance of the transmitting coil, and reduces the amount of wire used for coil winding. In addition, utilizing the decoupling characteristics of the dual D-type coil and Q-type coil, the receiving coil and the receiving end compensation coil are magnetically integrated, saving space and the amount of magnetic cores used; Finally, a simulation model with an output power of 1.4kW was built to verify the system's good anti offset ability and constant current output effect.