With a large number of electric vehicles connected to the grid, it is necessary to conduct energy management for electric vehicles to achieve orderly charging, thereby ensuring grid safety. The wireless charging of electric vehicles is based on the coupled magnetic field to transmit electrical energy, and has the characteristics of portability, aesthetics, etc., and has broad application prospects. This paper focuses on the control strategy of electric vehicle wireless charging, only by controlling the primary side phase of the wireless charging system to achieve flexible adjustment of the charging power of the electric vehicle. In this paper, an experimental prototype is developed. The experimental results verify the effectiveness of the proposed wireless charging control strategy.