Abstract: The core device of WPTS is a coupling transformer. The air gap between the primary and secondary coils will produce leakage inductance and magnetizing inductance, which reduces the output power and transmission efficiency. To compensate for leakage inductance and magnetizing inductance, a compensation network is needed. According to the different compensation methods of the primary and secondary side, the typical compensation topologies are SS（series-series） type, bilateral LCL type（hereinafter referred to as LCL type） and bilateral LCC type（hereinafter referred to as LCC type）compensation. In this paper, for these three typical compensation topologies, through MATLAB/SIMULINK simulation, their transmission characteristics were analyzed, and their anti-offset performance was analyzed. The results show that the SS-type compensation topology is suitable for high-frequency operating environment. However, there is great hidden danger in some special conditions. The LCL-type compensation topology is more robust but not suitable for high power systems, The LCC-type compensation topology maintains better robustness, and the transmission power is also significantly improved. In this paper, an experimental platform is built to verify the transmission characteristics of the SS-type compensation topology. When the coupler coil is not offset, the transmission power can reach more than 3 kW, and when the coupler coil is offset to 200 mm, the transmission power is as high as 6 kW.